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Our team of testers weighed, measured, analyzed, and rode the heck out of these bikes for months to compile this list of the best trail bikes, e-MTBS, hardtails, fat bikes, and budget mountain bikes.
Credit: Laura Casner
By Joshua Hutchens ⋅ Senior Review Editor ⋅ Updated April 14, 2025
Whether you seek adrenaline or quiet time in nature, a quality mountain bike can help you escape into the woods to enjoy some cardio and trail time. Our team of testers lives for mountain biking; we spend an inordinate amount of time and energy seeking the perfect line and bike to ride it.
For trail riding without limitations, our favorite trail bike is the Specialized Stumpjumper 15 Comp. It's as versatile as it is capable, with the latest in geometry and kinematics. There are models of this bike at almost every price point.
If you're on a budget, the Ibis Ripmo AF is, hands down, our recommendation. This bike has an outstanding build for the price and won't hold you back. It's a bit heavier than higher-priced bikes, but you're riding for fitness anyway, right?
Want something different? The Revel Rascal XO Transmission doesn't have wild looks, but its performance is out of this world. There's more to those suspension acronyms than hype, and Revel's CBF suspension is incredibly good.
We understand how daunting it is to shop for a mountain bike. Comprehending all of the nuances of geometry and performance can feel overwhelming, but we're here to help. Of the dozens of mountain bikes we've tested, these are the standout favorites. We've tested other gear, like the best bike helmets, top mountain bike shoes, and bike racks for your vehicle.
Editor's Note: We updated this mountain bike review on April 14th, 2025, to add the new Ibis Ripmo V3.
The latest version of the Specialized Stumpjumper feels a bit like a new iPhone model. The bike is spectacular, but it doesn't represent a significant departure from the previous Stumpjumper EVO. The FACT 11m frame provides 145mm of 4-bar travel, adjustable geometry through the headset and chain stays, an updated SWAT box, and, notably, NO routing for mechanical derailleurs. I might complain that the changes have been minor, but this is one of the best trail bikes I've ever tested.
The GENIE shock is the big news with version 15 of the Stumpjumper, a new take on an air shock that provides a more linear initial stroke and enhanced traction. Specialized provides extensive statistics on GENIE's merits, and “it's good, but it's not a coil shock,” said one tester. Speaking of, Specialized sells nine models of this bike, three with coil shocks and three with alloy frames. The Comp is the lowest-priced carbon model using SRAM's new S1000 Transmission drivetrain, which is thoroughly impressive but contributes to the bike's hefty curb weight.
The Stumpjumper 15 is responsive and agile, especially in its steepest geometry settings; it's quick on the gas and rides with a subdued confidence. In the slackest setting, the bike has a 63.5-degree headtube angle and a bottom bracket as low as 330mm, giving it an intrepid approach to steep, nasty terrain. From park laps to chill XC trails, the Stumpy never felt ill-suited for the terrain. The new, symmetrical front triangle has increased torsional rigidity that gives the bike excellent composure at high speeds and in high input situations. The GENIE shock provides a bit more traction, and coupled with a relatively steep seat tube angle (76.7 - 75.8 degrees), the bike climbs with vigor and enthusiasm.
“My only significant gripe with the bike is the native 203mm brake mount in the rear. Paired with Maven Bronze brakes, the combination provides way more power than I need to rudder my trail bike,” says tester Joshua Hutchens
Slays the descents but outclimbs many smaller bikes
True size-specific geometry
REASONS TO AVOID
Not the lightest bike
Fairly expensive
The Ibis Ripmo V3 GX AXS blew away the competition with its outrageous combination of climbing and descending prowess. The third iteration of the Ripmo is the best aggressive trail bike I've ever ridden. Improving on the past Rimpo wasn't a simple task, but an intense focus on the geometry of every size and features like frame storage and mixed wheel compatibility give Ibis another home run. Simply put, this bike outrides every other bike in its category. The geometry hints at exceptional downhill handling, but the Ripmo sacrifices nothing in the climbing department.
With incredible high-speed stability and unfaltering big-hit performance, the Rimpo lets you push harder than any other bike I've ridden. Very few bikes can shake a stick at the Ripmo; the Santa Cruz Hightower has similar geometry but doesn't carry the high-speed courage or bravado of the Ripmo. The Stumpjumper 15 is a great all-around trail bike, but the Ripmo gives the advanced rider a more aggressive platform for higher output riding.
The Ripmo is far more athletic than its numbers indicate, with lively, energetic handling and an ultra-responsive DW-Link rear end. Every size has unique geometry that hones in on the rider's center of mass, and Ibis added an Extra Medium size to give riders between 5'8" and 6' a more dialed fit. The general scope of the geometry has slackened the front end by a half degree (now 64.5) and added it to the seat tube angle, which is size-specific. Superlatives like “quiver killer” are totally appropriate with the Ripmo, as this is one bike that can do it all well.
The Ripmo V3 is a well-balanced, aggressive trail bike with a fantastic combination of uphill and downhill performance. This bike is ideal for the rider who loves to climb but doesn't want to sacrifice performance on the way back down. “The bike is a true unicorn of engineering that I'm proud to be effusive about,” says our lead tester. Riders wanting this performance for fewer shekels should consider the aluminum-framed Ibis Ripmo AF NX.
Revel has announced they're closing their doors. “Sad news for the industry, but you might be able to find a screaming deal on one of the best riding mid-travel bikes to come across my review bench,” says Joshua Hutchens.
Talk about punching above your weight class; the Revel Rascal XO Transmission is a wildly capable bike that employs the Canfield Brothers Formula suspension and some cutting-edge thermoset carbon technology. The geometry gives this bike a playful disposition, while its suspension allows you to test the limits of a 130mm travel bike. The bike's numbers are modern enough to make it versatile but not so modern that it loses its poppy, agile feel. Revel didn't just apply the longer/slacker formula for the update; they honed in on how a mid-travel trail bike should ride with 436mm of rear center inside its 1222mm wheelbase. The CBF suspension gives the bike phenomenal traction, whether clawing up a rooty section or braking through the chunder. "This bike reminded me of the Trek Top Fuel 9.8 GX AXS, not because of how similar its dimensions are but how dialed its geometry and kinematics are," remarked tester Joshua Hutchens. Both bikes display outstanding ride quality that their numbers alone don't allude to. Seasoned riders will be especially impressed with how isolated the suspension is from rider input. The build includes top-of-the-line suspension from RockShox and a drivetrain built for abuse.
The Rascal doesn't have adjustable geometry but new for 2025, it does get in-frame storage. While adjustable geometry can enhance a bike's versatility, we'd never complain that the Rascal isn't versatile. In fact, the bike seemed to excel in trails that were “a bit too much” for other bikes with similar geometry and travel. Conversely, the Rascal never felt like too much bike, even on mellow XC trails. If you're a performance-oriented rider seeking a bike without compromise, you'll love the Rascal; Revel even guarantees it! Our head tester had this to say, “I ride dozens of expensive mountain bikes each year, but the Rascal is a standout bike that feels worth the premium price tag.” Revel offers three complete build kits of the Rascal starting at $4500.
The Yeti SB 140 is a top-notch mid-travel trail bike that feels precise and efficient. This 140mm 29er delivers exceptional ride quality and performance that isn't totally explained by its geometry. Whether tackling steep climbs, fast-rolling flow trails, high alpine epics, or hitting the jump line, the SB140 is up for it. With excellent climbing traction and near-ideal positioning, its long 440mm chainstays keep the rear wheel planted through technical terrain and rough climbs. The Yeti is equally impressive when you point the 65-degree front end downhill, maintaining excellent small bump sensitivity throughout its travel. The headtube angle isn't extreme, giving the bike a spry, agile feel. “I loved how well-balanced the Yeti felt and how precisely it tracked,” remarked tester Joshua Hutchens. The SB140 inspires confidence in all but the steepest terrain where its speed limit feels within reach. While still a shredder, this bike feels more refined, like off-roading a Range Rover.
If you're looking for a new trail bike and want frame storage or adjustable geometry, the SB140 isn't going to wet your whistle. Similarly, if you're a more aggressive rider, you may want to keep shopping those longer, slacker rigs. “The Yeti offers agility and athleticism with less reliance on mass and travel,” wrote one of our testers. Yetis aren't cheap but complete builds of the SB140 start at $6000. Its exceptional traction allows you to push the limits of cornering and braking, making it an ideal companion for tackling most of the singletrack terrain in North America. Hop aboard a Yeti SB140 and enjoy how this bike deftly handles trail duty. If that all sounds great, but you want something a bit more rowdy, check out the Ibis Ripmo V3 GX AXS or Specialized Stumpjumper 15 Comp
Mino-Link provides adjustable geometry and leverage
BITS bag with downtube storage
Can be run with 130/140mm suspension
Mullet (MX) wheel compatible
REASONS TO AVOID
Wheels are heavier than we'd like
Short saddle isn't for everyone
The latest generation of the Trek Top Fuel 9.8 GX AXS delivers modern geometry and some slick updates. Now labeled as a “down-country” bike—though that term can be a bit puzzling, the 120mm OCLV carbon trail bike isn't shy on capability. The bike crushes the ascents, rivaling a modern XC ride's quick, responsive handling and a remarkably supportive pedaling platform. Handling is nimble and quick, with a 76.3-degree seat tube angle that helps you maintain your pedaling power efficiently, even on steep grades.
Descending prowess is enhanced by the ABP suspension that decouples braking forces from the suspension. A headtube angle of 65.9 degrees slows the steering enough to get rowdy without affecting its spectacular climbing performance. A wheelbase of 1227mm provides stability and a higher speed limit than you might imagine. "While testing, I felt the “short travel” designation sold the bike short; the Top Fuel has flow, finesse, and true trail pedigree," says tester Joshua Hutchens.
A clever 4-way Mino-Link lets you adjust the geometry and desired leverage, and Trek also made the bike compatible with a longer shock and fork to let you run 130 / 140mm travel. Big wheels are fitted to M, ML, L, and XL models, while the S gets 27.5" wheels; the former are mullet (MX) compatible. Frame storage with the Bontrager Bits keeps your tube and tools organized and quiet.
The Top Fuel is a well-balanced trail bike with abundant adjustability. One of our testers said, “It challenges the assumption that trail bikes should have more travel.” Trek is so sure of the bike that it's backed with a 30-day Unconditional Guarantee.
The Ibis Ripmo AF stands out as an absolute brute of a trail bike that can still finesse the trail and climb like a goat. 147mm of DW-Link travel and updated kinematics give this chassis a bottomless feel without the lethargic squat often accompanying that much travel. The Ripmo ride is lively, energetic, playful, and fun; the bike encourages you to go bigger. A 160mm fork sits below a headtube angle of 64.9; the Ripmo excels at losing elevation rapidly. The steeper, the better on this metal ripper. Yet, this bike with its 76-degree seat tube is also an adept climber, or as proficient as a 34lb trail bike can be. The bike feels like a case study of how dialed geometry can make you a better rider. Ibis did a magnificent job with the bike's spec: burly suspension, wide rims, heroic tires, and a no-fuss drivetrain. 4-piston brakes and a long dropper post add to the bike's capabilities and instill confidence. The carbon version of this bike is our Editor's Choice and utilizes the exact same platform, plus a few fancier parts, minus a few pounds.
So why wouldn't you want to buy this bike? At 34 pounds, it can feel like a lot of bike to drag around the woods. The bike's weight is further dogged by suspension that doesn't have fancy valving to increase your efficiency. It's also a fairly long travel bike, and while that gives it insane capabilities, it's probably more bike than many riders need. “The Ripmo feels courageous, under-priced, and fun AF,” says Joshua Hutchens.
Heavy metal! The Ripmo absolutely rips, but it isn't the lightest bike to rip around on. You're hard-pressed to find a more capable bike for less than $3000.
Wheel Size: 29" | Weight: 33 lbs 10 oz (size large, set up tubeless)
REASONS TO BUY
Excellent Climber
Outstanding Value
Geometry keeps this bike fun at slower speeds
REASONS TO AVOID
Optimal on moderate terrain
Less aggressive rubber
Heavy for its travel
The Canyon Neuron 5 is a trail bike that leans in to its XC roots. 130mm of travel paired with slightly steeper geometry than most trail bikes give it a snappy, responsive ride quality. This bike is most fun even when the terrain isn't incredibly challenging. The Neuron resists being too long, too slack, and, as such, too extreme. Not every rider wants or needs a big travel trail slayer, and this bike is optimized for those less rowdy days in the saddle. Tester Pat Donahue had this to say about the Neuron, “The handling is crisp and responsive, and the bike climbs with the same athleticism that characterizes its ride.” Ascending trails and fire roads on this bike is a joy; the bike rewards your input. If you're less likely to steer into the chunky line or hit the trail side jumps, the Neuron has your number.
While the Neuron excels in mild terrain, steering it into the rougher, choppy bits of trail exposes its limits. The responsive geometry is overwhelmed at higher speeds. The 2.4-inch Schwalbe tread with low, efficient knobs are fast but find their speed limit when the trail gets loose or technical. Riding steep sections of trail is totally possible, but it requires more skill and courage on the rider's part. The bike's weight had little effect on how we rode it, but it did feel heavy in technical situations.
The Norco Fluid FS 4 is our pick for the best budget mid-travel mountain bike. This bike is so competent that we quickly forgot that we were riding a “budget bike.” Whether tearing down a high-speed flow trail or charging down a chunky trail, the Fluid was very composed and was as fun as a barrel of monkeys. Pair this brilliant on-trail performance with a stellar build kit that features a wide-range cassette and long-travel dropper post, and it was a very easy choice for Best Budget Mountain Bike.
Our complaints with the Fluid are all relatively minor. Our XL test bike tipped the scale at over 36 pounds, which is apparent in every aspect of its performance. We generally test large frames, so comparing the weight of this extra large frame isn't exactly apples-to-apples. “I found the climbing performance adequate, but would love to see a climb switch on the shock for use on fire roads or smooth double tracks,” says tester Pat Donahue. Budget-conscious shoppers should also check out the Polygon Siskiu T8.
The Levo's last real update was in 2022 but make no mistake, this bike still stomps the competition. Like the unpowered Stumpjumper, Specialized gave the Levo a highly adjustable geometry that allows the rider to significantly alter its character to suit their riding style, terrain, and preferences. With six distinct geometry settings to choose from, you can set it up as a more nimble trail bike, an aggressive gravity-oriented slayer, and everything in between. “The unprecedented level of adjustability truly expands this bike's versatility and puts it in a class of its own,” says tester Jeremy Benson. Rocking 150mm of FSR rear wheel travel, a 160mm fork and mixed wheel sizes for a confident front end and playful rear end. Specialized's Turbo Full Power 2.2 motor is quite powerful, with 90Nm of torque and up to 565 peak watts of output, with three customizable levels of pedaling support. A 700Wh of battery is housed in the frame's downtube, providing significant range, and the whole package has been refined and well-integrated with balanced weight distribution for a natural ride feel.
The Comp Alloy is one of the least expensive builds of the Turbo Levo offered, and it comes with a functional build, but there are a couple of weak points. There are an almost overwhelming amount of Levo models available and there aren't any that we don't recommend. The Turbo Levo is one of the best and most well-rounded electric mountain bikes you can buy. Its adjustable geometry takes its versatility to another level. If you're in it for the long haul, the 900Wh battery of the Canyon Spectral:ON CF 8 may make it a more suitable pick.
Canyon latest Spectral:ON models really shine, and the Canyon Spectral:ON CF 8 is a versatile trail e-MTB that also happens to be one of the best values on the market. This carbon-framed bike sits atop mixed wheels (29-inch front and 27.5-inch rear), has 150/155mm of front/rear travel, and contemporary geometry that perfectly suits its trail intentions. Despite its 50+ pound weight, it handles well at varying speeds and terrain, with an excellent blend of agility, stability, and composure in all situations. The ever-popular Shimano EP8 motor provides up to 85Nm of torque with three customizable support settings to dial in for your needs. It also comes with a massive 900 Wh battery, providing the longest range of any electric mountain bike we've tested. Canyon's consumer-direct sales model also means this bike comes with an excellent build for the price (though it's still triple the cost of electric bikes for commuting). While no drop in the bucket, the Spectral:ON CF 8 is a fantastic value. "If you're already throwing down the big bucks, you should also consider the Turbo Levo Comp Alloy before making your selection," advises tester Chris McNamara. The powerful motor and adjustable geometry are just some of the features that make this eBike worth the investment.
Fezzari may not be a household name in the mountain bike market, but the consumer-direct brand is hoping to change that by producing quality bikes of all kinds, including the Kings Peak Comp fat bike. With a geometry reminiscent of a regular trail bike, the longer and slacker Kings Peak has a very familiar feel when the rubber hits the snow and/or dirt. Fezzari's 23-point custom setup ensures a comfortable fit, and the angles are spot on for typical fat bike riding while still being surprisingly capable when taken out of the normal fat bike comfort zone. With a sleek carbon frame and a weight of only 31 pounds, this bike pedals efficiently across virtually any surface and looks good while doing it. The frame and fork feature a wealth of mounting points for water bottles and other accessories, making it easy to gear up for bike packing or far-flung adventure rides. While not exactly flashy, the build is perfectly functional. Fezzari also offers a more expensive build and a number of component upgrades to choose from.
Aside from a couple of minor gripes, we loved the Kings Peak Comp. We love SRAM Eagle drivetrains, but the SX version isn't impressive. It works well enough, but we find the shifter particularly problematic. It's consistently hard to position it in an ergonomically friendly manner. The slipping grips on this bike could easily be remedied with a simple pair of lock-on grips. The Clarks M2 brakes work well enough to control typical fat bike speeds, but we are unsure of their long-term performance and durability. Otherwise, this bike was excellent, and it gets our recommendation. We also recommend the Ibis Ripmo V2 XT if conditions don't require a fat tire and you want the best trail bike all around.
The Fezzari Kings Peak proved to be the best all-around fat bike we've tested.
Credit: Jeremy Benson
How We Tested
Our testing process is based on identifying the best MTB bikes on the market and putting them through extensive hands-on testing. Our team of testers ride these bikes to their limits to see how each bike performs in a wide variety of terrain. We do endless laps at bike parks, all-day epic rides, huge multi-thousand-foot climbs, and gnarly descents. Our team has been testing mountain bikes in this rigorous manner since 2017. You name it: trail bikes, enduro bikes, hardtails, fat bikes, electric mountain bikes, and mountain bikes under $3000, and we've tested them. Over the past seven years, we've spent over $200,000 purchasing the mountain bikes we review (usually at retail) to remain as objective and unbiased as possible. If we ever use a media bike or demo bike from a manufacturer, we insist on paying demo or rental fees. We're very careful about maintaining our autonomy and remaining free of influence to bring you the best and most unbiased mountain bike reviews.
Why Trust GearLab
Our Senior Mountain Bike Review Editor leads our test team, Joshua Hutchens is a lifelong mountain biker, coach, former racer, guide, and shop owner who rides with finesse and style. He's ridden hundreds of different mountain bikes over the years and can identify the most subtle and nuanced differences between the bikes he tests.
For many years, Hutchens has received testing input from a diverse group of professional bike testers. Former GearLab Mountain Bike Editor turned bike shop owner, Pat Donahue is a talented rider with a preference for steep and chunky descents. He is particularly tough on and critical of the gear he uses and has a keen eye for the performance characteristics that make a great bike. Kyle Smaine was raised at the bottom of some of the area's most iconic trails. Kyle is a talented professional skier with a healthy collection of medals in the halfpipe. In the warmer months, he spends his days putting impressive times both up and down the mountains and is among the most talented multi-sport athletes in the greater Tahoe area.
The Ripmo V2 is one of our favorite bikes for a reason. There's nothing this bike doesn't do well.
Credit: Laura Casner
How to Pick the Best Mountain Bike for You
Purchasing a mountain bike is an expensive endeavor and can be downright scary. Slapping down the credit card for a large purchase requires serious research. All of this research can bring to light loads of jargon and terms. Terms like mid-travel, short-travel, and enduro are always thrown around. OutdoorGearLab is here to make sense of it all.
We will explain the different types of mountain bikes and what they are designed for. Once you settle on a category of bike, you will need to consider wheel and tire size. 29-inch, 27.5-inch, plus-sized, they all have strengths and weaknesses. Female riders have to decide if they need a women's bike or if they can tweak a unisex bike to fit them better. We will walk you through all of these decisions.
Types of Mountain Bikes
It is essential to be realistic about what kind of terrain you want to ride because the right type of mountain bike will vary depending on where you will ride. Determining what sort of trails you have in your hometown is important. Also, it can be worth considering if you will be regularly traveling to bike parks or trail centers.
XC bikes are efficient rides for covering long distances and moving quickly.
Credit: Laura Casner
Cross-Country Bikes
Cross-country bikes are very much a niche category. If you are reading this, chances are most of these bikes probably aren't for you. Folks interested in a true cross-country bike are likely thinking about racing and value weight and efficiency over fun, comfort, and practicality. XC bikes are fun on a more limited range of trails. Stiff and brutally efficient, cross-country bikes are either hardtails, meaning they have no rear suspension, or they have about 100mm of rear suspension. Steeper geometry, a low stem, and firm and unforgiving performance are features of these bikes.
Riders who gravitate to very smooth trails might enjoy the outright efficiency of these bikes. If you want a playful ride or live where the trails have roots and rocks, these probably aren't the best choice unless you're planning to race on the XC circuit. A short-travel trail bike is almost as efficient while offering a far more fun and capable ride.
Riding a bike is the only way to get to know its performance characteristics. Fortunately, it's also a blast.
Credit: Jenna Ammerman
Trail Hardtails
Hardtail mountain bikes are a great option if you'd rather get out and ride than attack steep or rough terrain regularly. Simple, low maintenance, and speedy — these no-frills bikes do not have a rear suspension but feature more aggressive trail bike geometry. As a result, they are very efficient pedallers and are perfectly capable of getting a little rad. Less experienced riders will gain valuable skills on these less forgiving bikes, which benefit from excellent line choices and proper form. Hardtail trail bikes are relatively versatile but require some caution on the descents as they tend to be somewhat harsh. Riders who prefer to attack steeper and rougher terrain with any regularity should look into a full-suspension bike.
Since hardtails require less technology, they are usually less expensive than full-suspension bikes. A lower price point makes hardtails an excellent option for passionate riders on a budget. If you think these are the bikes for you, check out our review selection of hardtail mountain bikes.
Modern short-travel bikes can do it all, only limited by their modest travel numbers.
Credit: Jenna Ammerman
Short-Travel Trail Bikes
Short travel bikes are excellent if you value variety and efficient climbing and aren't hell-bent on slaying descents. Short-travel trail bikes feature about 110-130mm of rear-wheel travel. They are practical for those looking for full-suspension confidence and comfort without sacrificing efficiency. Riders who like to pound out serious miles will feel comfortable aboard these short-legged steeds. Bicycles in this category would be an excellent option for those who ride flatter terrain or live in mountainous areas but don't want to push the envelope to get aggressive on the descents. Riders seeking a more well-rounded climbing/descending experience might be interested in pulling some more heft with a mid-travel bike. If this seems like the balance of bike skills you've been looking for, check out the 110 to 130mm options in our constantly updated review of trail mountain bikes. Travel numbers appear in the Suspension & Travel row of our Test Results and Rating Table.
Mid-Travel Trail Bikes
Mid-travel bikes are an MTB sweet spot perfect for anyone who destroys descents but still values climbing skills. These bikes are very versatile and provide strong performance in all areas. They balance climbing skills and descending capabilities beautifully and are comfortable on the overwhelming majority of trails. Mid-travel bikes are just as comfortable making the occasional trip to the bike park as they are doing a 30-mile trail ride. This suspension range, 130-150mm, works for a large portion of riders. If you live in a primarily flat or smooth region, these bikes could prove to be overkill. If the highlight of each of your rides is flying down the super-gnar, you should look into an enduro/long-travel rig. If you're interested in this multi-faceted and fun category, head over to our ever-evolving trail mountain bike review to read about fantastic daily drivers in the 130 to 150mm range. Find travel numbers near the bottom of the Test Results and Rating Table.
Enduro bikes are for riders who focus more on the descent than anything else.
Credit: Jenna Ammerman
Enduro Bikes
Enduro is an often over-used buzzword, and enduro bikes love to bomb technical descents and climb just enough to get to the top. Long-travel, or enduro, bikes are awesome for those who don't mind carrying some extra bike around in the name of getting rowdy. With 150 to 170mm of travel, they pedal reasonably well, but efficiency is far from their defining trait. These bikes are not the best for long-distance rides and will not set any climbing records. Enduro bikes focus on high speeds and rough downhills. Those looking for freeride lines or park laps will be more than comfortable aboard these shred sleds.
26-inch wheels are a thing of the past, nearly all bikes have 27.5-inch or 29-inch wheels these days.
Credit: Laura Casner
Choosing Bike Components
Once you know what kind of mountain bike suits your riding style and terrain best, a few component decisions will help you narrow down the field considerably.
Wheel Size
Not all that long ago, all-mountain bike wheels were all 26 inches in diameter. Now, 27.5-inch and 29-inch versions are far more common on the trail. The 26-inch wheel size is all but forgotten. The benefit of bigger wheels is that they make trail features smaller by comparison. As a result, you can roll over obstacles on the trail more efficiently and with less effort. Bigger wheels are also faster and carry speed and momentum well through chunky terrain. The argument for smaller wheels is that they are easier to maneuver and, therefore, more fun. For a few short years, many riders thought 27.5-inch wheels were the sweet spot between the rollover benefits of 29ers and the agility of 26-inch bikes. Modern frame geometry has drastically improved the performance of 29ers, and they are allowing for more precise and playful handling than ever before. Mixed-wheel sizes have recently grown in popularity. A 29-inch front wheel paired with a 27.5-inch rear is commonly referred to as a “mullet” or MX setup, with business in the front and party in the back. The idea is that it combines the best traits of both wheel sizes. The larger front wheel rolls over obstacles more easily and provides stability and confident handling, while the smaller rear wheel offers agility and maneuverability for the rear end of the bike. One may want to consider their body size in their wheel size decision, as smaller wheels may feel more comfortable for smaller riders, and larger wheels might work better for larger riders on larger frames. Many frames now offer a few wheel and tire size options. It's still valuable to think through which one you want to commit to. We don't know anyone who regularly switches between wheelsets.
The right tires can make a huge difference in the performance of your bike. The Maxxis Minion DHF is a tester favorite.
Credit: Jenna Ammerman
Tire Size and Rim Width
Normal tire widths have slowly been getting wider over time. Previously, 2.35-inch tires were considered relatively standard, but now they tend to run in the 2.4-2.5-inch range on most trail bikes or even 2.6-inch versions on wider rims. Wider tires have more air volume and a larger contact patch that offers tons of traction and a little softer ride, although they may provide more resistance when heading uphill. Then, there are your plus-sized or mid-fat tires. These run from 2.8-inches to 3-inches. We like the 2.8-inch versions as they offer traction and often give you defined cornering knobs to dig into turns. Three-inch tires provide you with plenty of grip but often a more vague cornering feel due to smaller, more uniform knobs. To get geeky about tires, check out our review of mountain bike tires.
Tires are easy to switch out and are among the most cost-effective ways to upgrade the performance of your bike. Rims are a much pricier and more time-consuming fix. Anything less than a 25mm rim is now considered narrow for an aggressive trail or enduro bike. We recommend trying to find something in the range of 28mm to 35mm, with the sweet spot right around 30mm. For less aggressive bikes, it's less critical, but traction is traction. We like it on all of our bikes. It's a good idea to ask manufacturers or dealers what range of tires you can run on their rims.
Most bikes are offered in a range of build kits and prices.
Credit: Jenna Ammerman
Choosing a Complete Bike Build
Frame. Aluminum vs. Carbon is your first big decision point. Choosing an aluminum frame typically involves substantial cost savings. It's typically slightly heavier, flexes more easily, and doesn't have the strength of modern carbon. If you're just trying to get out on your bike, aluminum is great. Carbon fiber is more expensive, lighter-weight, and stiffer than aluminum as a frame material; it's also superior at dampening vibrations. Consider carbon fiber if investing in your bike is a priority and you plan on having it for an extended period. Carbon fiber ages better than aluminum.
Fork and Rear Shock. Suspension components come in a huge range of price points. The differences between low-end and high-end suspension componentry are significant, though it may not be apparent to riders just starting out. A higher-end fork and rear shock will be more adjustable to your weight, riding style, and personal preference. Heavier riders will find more comfort and durability with coil-sprung suspension than shocks that rely solely on air reservoirs.
Most bikes come with 1x drivetrains that have a huge gear range.
Credit: Jenna Ammerman
Drivetrain. It's important to note if the drivetrain has one (1x) or two (2x) chainrings. Two chainrings require a front derailleur, meaning you have shifters on both sides of your handlebars. We like 1x better. It's simpler, easier to shift, leaves more room for a dropper seat post control, and is less to destroy. Most modern mountain bikes come with 1x drivetrains, which typically have 11 or 12 total gears.
Wheelset. Higher quality is better, but pay attention to the rim width, which can drastically alter how effective your tires are. Rims are getting wider along with tires, making traction plentiful and bikes more comfortable. Like bike frames, rims come in aluminum or carbon fiber, and the latter are typically much more expensive.
Seatpost. We highly recommend a dropper seat post. Here's a review of some of the best dropper posts on the market. If you're not a convert already, it will change your game more than any other single shift. Sometimes, it's worth jumping up to a higher quality complete build to get one, and sometimes, it makes more sense to get one separately.
Women's specific bikes come with women's saddles, grips, bars and cranks. They also usually have lighter shock tunes than unisex models.
Credit: Jenna Ammerman
Women's Bikes
The majority of mountain bikes are considered unisex models. What makes any bike a woman's bike is whether or not a woman is riding it. The problem with only providing unisex models for both men and women is that these bikes are set up for the average rider. The average rider still skews male and is around 30 pounds heavier than a woman of approximately the same height (according to women's MTB company Juliana and the Center for Disease Control and Prevention). Men are also taller than women on average. This means that frames can be too big, and standard shock tunes can be too stiff for smaller, lighter riders.
Several bike manufacturers address this issue by making women-specific models. Some take a step further and branch off into separate, women-specific companies. Examples of the latter include Santa Cruz's Juliana and Giant's Liv. It used to be more common to build women's bikes from the ground up with unique geometry. Now, most companies provide unisex frames with lighter shock tunes, different colors, and women's specific touchpoints. These touchpoints include women's saddles, smaller grips, and sometimes shorter cranks and narrower handlebars.
Making bikes smaller with lighter shock tunes for smaller riders makes a lot of sense. Most mountain bikes are considered unisex and can also work well for females assuming you can get the right fit.
Credit: Jenna Ammerman
Setting frame design aside, we find sizing and shock tunes to be the most essential elements of a women's mountain bike. First, a bike has to fit. Second, its fork and shock need to respond to small impacts and use their full travel range on larger hits. At that point, you have a functioning mountain bike. These days, many manufacturers are using lighter shock tunes on their smaller-sized bikes to work better for smaller riders.
Minimal assembly required. Slap on the wheels and the handlebars, maybe run it past a mechanic if you're new to wrenching, and start rolling.
Credit: Jenna Ammerman
Consumer Direct vs. Local Bike Shop
Consumer direct sales are a growing trend in the mountain bike industry. More and more brands are selling their bikes directly to the consumer, cutting out the local bike shop. With the middleman cut out of the sales chain, companies can sell their bikes at extremely attractive prices. Brands like YT, Commencal, and Canyon are the biggest consumer-direct brands in the USA.
Convenience and savings often come at a cost, and buying consumer-direct is no different. Purchasing a mountain bike at a bike shop buys you a relationship with a shop and maybe some small complimentary services. Quick repairs and warranty services may often be conducted for free. In addition, your local bike shop can be a wealth of knowledge, and well-trained mechanics can spot issues before they become problems.
More bikes mean more specific talents and more to maintain.
Credit: Jenna Ammerman
Multiple Bikes?
Having a quiver of mountain bikes is the definition of luxury. A multi-bike quiver can be the best solution to get the most out of this fantastic sport. That said, it certainly isn't cheap. Having a short travel bike and an enduro bike will have you covered on the bulk of trails. Since this is somewhat unrealistic, we place a lot of emphasis on mid-travel trail bikes. These are often the best solution as they are comfortable on a huge variety of terrain. Long rides, some shuttle laps, after-work hot laps, these bikes can do it all. You can always rent a longer travel bike for an occasional trip to the bike park.
Some people are lucky enough to have year-round trails in their backyards. For the rest of us, the off-season and time constraints are real. Luckily, there have never been more options for training at home if you can't get on the trails. Many of the top-rated exercise bikes have evolved into interactive machines you can ride solo or with groups. These bikes now allow you to join a live group ride or follow some of the most scenic road rides around the globe. Perhaps even more intriguing are the latest bike trainer options, which allow you to train on your favorite bike with most of the features of high-end stationary bikes. And for those who want to use the off-season as an excuse to specifically take a break from riding, a great home treadmill from our review might be the call.
There are loads of great mountain bikes to choose from. Get a bike and get out and ride.
Credit: Laura Casner
Conclusion
This guide should help make your big mountain bike decision a little bit easier. Be sure to think through the process in its entirety. The most important thing about deciding which mountain bike to buy is to be realistic about your skills, goals, and where you ride. The above-mentioned list of bikes is the best of the best. Rest assured, OutdoorGearLab will keep buying, riding, and reviewing the top bikes in the industry to keep this list current.
—Joshua Hutchens, Jeremy Benson, Pat Donahue, and Kyle Smaine
