Are you searching for the best mountain bike under $2500? We researched virtually every model on the market in the $1,800-$2,500 price range and bought seven bikes for side-by-side testing. Our team of professional mountain bike testers rode these bikes for months while analyzing their performance, design, and build kit. You can easily spend a small fortune on a new mountain bike these days, but after testing these affordable models, it's clear that you don't have to. Bikes in this price range are improving dramatically and there are lots of great options to suit any riding style and budget.Related: Best Trail Mountain Bikes of 2021
Best Mountain Bikes Under $2500
|Price||$2,499 List||$2,100 List||$2,349 List||$2,399 List||$1,799 List|
|Pros||Awesome build for the price, versatile, well-rounded performance||Energetic playful feel, lighter weight, 12-speed drivetrain, modern trail bike geometry||Reasonable price, modern trail riding geometry, nice component spec for the price, versatile on-trail performance||Hard charging on descents, long dropper post, modern trail bike geometry||Reasonable price, comes with a dropper post, fun on a range of terrain, efficient climber, playful on descents|
|Cons||Firm grips, saddle shape||Fork needed immediate service, can be overwhelmed in more aggressive terrain||A little heavy, underpowered brakes, a little sluggish on the climbs due to weight||Heavy, mediocre fork specification, not the fastest climber||Non-boost fork, some cable rattle over rough terrain, can be overwhelmed on aggressive trails|
|Bottom Line||A well-rounded mid-travel trail bike with a great build at an amazing price||A super fun, zippy, and affordable short travel 29er||An affordable shorter travel trail bike that's fun to ride on a wide range of terrain||A ripping mid-travel 29er that is capable of charging hard downhill||An affordable entry-level full-suspension bike for taking your riding to the next level|
|Rating Categories||Polygon Siskiu T8||Giant Trance 29 3||Marin Rift Zone 29 2||Kona Process 134 29||Polygon Siskiu D7|
|Fun Factor (30%)|
|Specs||Polygon Siskiu T8||Giant Trance 29 3||Marin Rift Zone 29 2||Kona Process 134 29||Polygon Siskiu D7|
|Wheelsize||29||29||29||29||29 (27.5 on sizes S, M)|
|Rear Travel Length||135mm||115mm||125mm||134mm||120mm|
|Measured Weight||32 lbs 8 oz||30 lbs 12 oz||34 lbs 10 oz||34 lbs 13 oz||33 lbs|
|Available Sizes||S(27.5), M(27.5 or 29), L(29), XL(29)||S, M, L, XL||S, M, L, XL||S, M, L, XL||S, M, L, XL|
|Fork||Fox Rhythm 34, 140mm||Marzocchi Z2, 130mm||RockShoz Recon Silver RL, 130mm||RockShox Recon Motion Control Solo Air, 140mm||RockShox Recon RL, 120mm|
|Rear Shock||Fox Float DPS Performance EVOL||Fox Float DPS Performance||RockShox Deluxe Select R||RockShox Deluxe Select||RockShox Deluxe Select+|
|Wheelset||Entity XL2 Disc||Giant Tracker hubs with iant XCT tubeless rims, 25mm internal rim width||Marin Double Wall Alloy with Shimano hubs, Tubless Compatible||Shimano hubs with WTB ST i30 TCS rims||Shimano hubs with Entity X15 doublewall disc rims|
|Front Tire||Schwalbe Han Dampf Addix Speedgrip EVO TLE 2.6"||Maxxis Minion DHF EXO 2.3"||Vee Tire Flow Snap 2.35", Tackee Compound, Tubeless ready||Maxxis Minion DHF EXO 2.5" WT||Schwalbe Nobby Nic 2.25"|
|Rear Tire||Schwalbe Han Dampf Addix Speedgrip EVO TLE 2.6"||Maxxis Minion DHR II EXO 2.3"||Vee Tire Flow Snap 2.35", Tackee Compound, Tubeless ready||Maxxis Minion DHF EXO 2.3"||Schwalbe Nobby Nic 2.25"|
|Shifters||Shimano SLX 12-speed||SRAM SX 12-speed||Shimano Deore 12-speed||SRAM SX 12-speed||Shimano Deore 11-speed|
|Rear Derailleur||Shimano SLX 12-speed||SRAM SX 12-speed||Shimano Deore 12-speed||SRAM SX 12-speed||Shimano Deore 11-speed|
|Cranks||Shimano MT510 175mm(L-XL)||SRAM SX Eagle DUB||FSA Comet||SRAM SX Eagle||Shimano Deore|
|Bottom Bracket||BSA Threaded||SRAM DUB Press fit||SRAM DUB PF92||Shimano Deore|
|Cassette||Shimano SLX 12-speed 10-51T||SRAM SX Eagle 11-50T||Shimano Deore 12-speed, 10-51T||SRAM SX Eagle 11-50T||Shimano Deore 11-speed|
|Saddle||Entity XTENT||Giant Contact (neutral)||Marin Speed Concept||Kona Trail||Entity Void|
|Seatpost||Tranz-X 170mm (L-XL)||Giant Contact Switch||TranzX YSP23JL 175 mm (XL) 150mm (M-L), 125mm (S)||TranzX Dropper Internal 170mm||Tranz-X 170mm (L-XL) 150mm (S-M)|
|Handlebar||Entity Expert 780mm||Giant Contact TR35 780mm||Marin Mini-Riser Alloy 780mm||Kona XC/BC 35 780mm||Entity Expert Alloy 780mm|
|Stem||Entity Expert 35mm||Giant Contact SL 35||Marin Alloy, 35mm||Kona XC/BC 35||Entity Expert 45mm|
|Brakes||Tektro HD-M745 4-piston||Shimano MT400||Shimano BR-MT200 Hydraulic Disc||Shimano Hydraulic Disc||Shimano MT201 Hydraulic Disc|
|Warranty||10 Years on frame||Lifetime limited warranty on frame||Lifetime limited warranty on frame||5 Years on frame|
Best Overall Mountain Bike Under $2500
Polygon Siskiu T8
For 2021, the Polygon Siskiu T8 underwent a total redesign. It looks a lot like the previous version, but the frame has an updated geometry and some minor tweaks to the suspension platform. This mid-travel trail bike now has 135mm of rear suspension paired with a 140mm fork, and it is offered in different wheel sizes depending on rider/frame size. Following modern trends, Polygon lengthened the reach and wheelbase, slackened the head tube, and steepened the seat tube, bringing the Siskiu's geometry up-to-date. These changes have made it more stable at speed and confident on the descents, yet it still retains its maneuverability, responsive handling, and versatility. The steep seat tube angle lines the rider up in an efficient and comfortable seated position and the Siskiu T8 is an effective and well-rounded climber. Thanks to Polygon's consumer-direct sales model, this affordable bike comes with a build kit you'd normally find on bikes that cost significantly more. We feel the quality component spec and stellar all-around performance make the Siskiu T8 an exceptional value.
We found little not to like about this versatile and well-rounded ride. Our biggest gripe was the touchpoints of the bike, most notably the grips and the saddle. The grips felt thin and firm, and they didn't do much to dampen vibration or enhance comfort. The saddle also felt short, and it had a unique shape to its tail that we didn't get along with on steep descents. The Tektro brake levers also weren't our favorite, with a somewhat cheap look and feel. Otherwise, we were very impressed by the new Siskiu T8, it's an affordable mid-travel ripper that looks and performs well above its asking price.
Read review: Polygon Siskiu T8
Another Great Affordable Trail Bike
Marin Rift Zone 29 2
The Marin Rift Zone 29 2 is a versatile shorter travel trail bike with a well-rounded performance. With 125mm of rear-wheel travel paired with a 130mm fork and an up-to-date modern geometry, this bike rips harder than you'd expect on the descents. It's stable at speed and capable of tackling some aggressive terrain, yet it remains easily maneuverable and playful when you want it to be. The suspension platform is relatively calm, and the Rift Zone 29 is a comfortable and relatively efficient climber given its slightly heavier weight. It also comes equipped with nice wide handlebars, a dropper post, and beefy tires to match its downhill capabilities. We feel this is a great do-it-all trail bike option for the rider on a budget, or those just getting into the sport and looking to progress their skills.
The Marin Rift Zone 29 2 isn't without fault. At over 34 lbs, it's one of the heaviest bikes in this review and that weight is somewhat noticeable, especially when climbing. While most aspects of its build are dialed, the important job of slowing and stopping this bike is left to a set of 2-piston Shimano MT200 brakes. While these brakes work, they feel a tad underpowered considering how hard you can ride this bike, and the long levers take a little getting used to. Beyond that, we were impressed by this affordable and versatile trail bike.
Read review: Marin Rift Zone 29 2
Best Short-Travel Bike Under 2500
Giant Trance 29 3
The Giant Trance 29 3 is a sporty short travel trail bike and a solid all-around performer. This bike's liveliness and playful attitude make it one of the most fun bikes to ride in this review, and its downhill capabilities far exceed its short-travel pay grade. It feels like it has more than 115mm of rear-wheel travel thanks to Giant's excellent Maestro suspension platform that pairs very well with the 130mm Marzocchi Z2 fork. The Z2 is a departure from the typical budget fork specs, and after having it serviced it outperformed the forks found on most other bikes in this price range. The Trance 29 has a moderate modern geometry that gives it excellent versatility, and it feels highly maneuverable and comfortable at a range of speeds and terrain. It's also one of the most energetic and efficient climbing bikes of the bunch.
There was little not to like about the Trance 29 3. Testers did find, however, that it could be overwhelmed in aggressive terrain due mostly to the fact that it has less travel. You can ride just about anything on this bike, it just requires a little finesse and good line choices when the trails get rough and rowdy. Otherwise, testers were quite impressed with the playful, versatile, and affordable performance of this short travel ride.
Read review: Giant Trance 29 3
Best Bang For Your Buck
Polygon Siskiu D7
In our neverending search for the best value, we stumbled upon the Polygon Siskiu D7. Sold direct to the consumer by Bikesonline.com, Polygon bikes continue to impress us with their affordability and high price to performance ratio. The bike gets shipped to your doorstep with only a few simple assembly steps remaining, as well as all the necessary tools, to get out on the trail. Built around a sleek-looking ALX Alloy frame, the Siskiu D7 has 120mm of front and rear wheel travel and a moderate modern geometry. This short-travel bike has a lively and playful demeanor, responsive handling, and it excels on smooth, flowy trails and moderately rough intermediate-level trails alike. With a comfortable seated pedaling position and a calm, stable suspension platform, we found it to be a surprisingly efficient and capable climber. It also comes with a budget-minded but perfectly functional and reliable component specification that's ready to ride straight out of the box. Thoughtful features like a modern width handlebar and a dropper seatpost do wonders for this bike's handling, rider comfort, and control.
It's worth mentioning that the Siskiu D7 is a shorter travel bike that is best suited for less aggressive riders and terrain. While you certainly can ride just about anything on it, we wouldn't recommend it for steep and rough trails or riders looking to "get gnarly". That said, when kept in its element, we found it to perform much better than we expected for the price. Whether you're just getting into the sport or upgrading to a full-suspension bike, we think the Siskiu D7 is one of the best values you can find.
Read review: Polygon Siskiu D7
Why You Should Trust Us
Our testers are full-time, year-round, bike fanatics.
Jeremy Benson is the Senior Mountain Bike Review Editor for OutdoorGearLab. Benson is known for putting in an obscene amount of time in the saddle while testing, training, and riding just for the fun of it. Jeremy has racked up some impressive results at well-known races such as the Downieville Classic and Lost and Found Gravel Grinder. He is also the author of Mountain Bike Tahoe , a mountain bike guidebook for the Tahoe region.
Kyle Smaine was born and raised in beautiful South Lake Tahoe. He grew up right at the base of some of Tahoe's most famous mountain bike trails. Kyle is a professional ski athlete and has a healthy collection of gold medals in the halfpipe. While he may be known for his skiing, he's no slouch on a mountain bike. Kyle has his fair share of KOMs and is a very passionate rider.
Our team is rounded out with Joshua Hutchens. Joshua is a long-time bike industry veteran who has worked in nearly every capacity you can think of. Shop mechanic, racer, guide, shop owner, he's done it all and still maintains a boundless enthusiasm for exploring the mountain on two wheels. He's a talented rider and can even do no-handed wheelies, really.
Our team stays on top of new bike releases throughout the year and is always looking for the best new bikes that cost less than $2,500. When we see new models that look compelling, we get our hands on them and take them to task on the vast and varied trails of the northern Sierra in the greater Lake Tahoe area. After weighing and measuring all of the bikes for consistency, each tester takes each model for several test rides to see how much fun they are to ride and how they perform out on the trail. Our test rides feature the full spectrum of riding, from smooth mellow cross-country trails to rough and rowdy descents, we push these bikes to, and often past, their limits to get a feel for how they perform on the climbs and descents. Our testers take detailed notes of their impressions, which we use to formulate our opinions on each bike's performance.
Analysis and Test Results
There's no question that mountain bikes are expensive, and these days many complete full suspension bikes can cost about as much, or more than a nice used car. Fortunately for consumers, many brands are making affordable models that are actually trail-worthy and you won't need to sell a kidney or take out a second mortgage to purchase. Yes, you can spend upwards of $10K on a fancy new mountain bike, but we're finding that some of these budget-friendly models are plenty of fun to ride and won't break the bank.
Over the course of several months, our Tahoe-based mountain bike testers rode the trails throughout the Tahoe Basin and surrounding areas. All the bikes in our test selection were put through their paces on a wide range of trail types, with test laps that aimed to hit the full spectrum of mountain bike riding. Every aspect of each bike's performance was scrutinized and scored on three rating metrics that are discussed in greater detail below.
All of the bikes reviewed here are different, with varying geometry numbers, component specifications, and strengths and weaknesses that define the way they perform out on the trail. When our testing concluded and the dust settled, the Polygon Siskiu T8 was the top performer, offering an outstanding, versatile performance and a very high price to component specification ratio. The Giant Trance 29 3 was our favorite short-travel bike, with a lively and playful character, solid climbing performance, and downhill chops that exceeded our short-travel expectations. Marin's Rift Zone 29 2 also earned itself an award for being a versatile trail bike that proved to be a top all-around performer on the trail.
If you're reading this review, chances are you're interested in finding the best budget-friendly mountain bike under $2,500 for your riding style. The bikes in this review all fall within a few hundred dollars of each other and the differences in price really aren't very extreme. On the other hand, the differences in performance and component specifications are quite apparent, although pretty much every bike we tested qualifies as being a pretty good value. That said, in this price range, the consumer-direct brands tend to give you the most for your money. Polygon sells directly to the consumer, allowing them to provide a higher price to component spec/build kit ratio.
We ride mountain bikes because it's fun, and we assume that you do too. We rated each bike in this review on our tester's impression of how much fun they had while riding each model. Some bikes are more fun to ride than others, with a playful demeanor and versatility that makes them perform well at all times. When the rider and bike become one unit and you can forget about the bike to focus on the trail, you're probably having lots of fun. Other bikes are less fun to ride, inspiring less confidence, have a less well-rounded performance, or are built with components that hold you back from having a great time. We find it's easy to differentiate between bikes that are simply a blast to ride, and those that keep you on edge the entire time.
The Polygon Siskiu T8 is a bike that is shockingly capable, with a well-rounded performance that simply performs well everywhere. Bikes like this are fun to ride since they have such balanced trail manners that can handle a huge range of speeds, trail types, and conditions. The Giant Trance 29 3 also proved to be a blast to ride. The Trance 29 brings a high degree of liveliness and a playful demeanor to the table in a short-travel package that really impressed us with its versatility and quickness.
The new Kona Process 134 29 is a mid-travel trail slayer that comes to life when pointed down the hill and speeds increase. This bike is far more capable and confidence-inspiring on the descents than most bikes in this price range, and an absolute blast when riding fast or tackling more aggressive terrain. Similarly, the Marin Rift Zone 29 2 impressed us with its downhill capabilities, especially given its modest travel numbers. This versatile bike can charge hard, and pop and play its way down the mountain. Even the least expensive model in this review, the Polygon Siskiu D7, proved to be plenty of fun to ride when kept within its short travel limits. With a playful liveliness and responsive handling, the Siskiu D7 proved to be an enjoyable ride on less aggressive terrain.
Arguably the most important element of a mountain bike's performance, for most riders, is how it performs downhill. There are a number of factors that dictate the way a bike descends, most notably geometry and component specification. When everything comes together, a good downhill performer is versatile, responsive, and inspires confidence in the rider.
Three bikes battled for supremacy in the downhill performance rating metric. The Polygon Siskiu T8, Marin Rift Zone 29 2, and Kona Process 134 29 are pretty evenly matched on the descents. Polygon sells direct to the consumer and has the most impressive build kit of all the models in this test. It's not all about the components, but there is absolutely no question that the beefier suspension, wheels, and tires do a lot to enhance the Siskiu T8's capabilities on the descents. The Polygon's updated longer and slacker geometry pairs with its 135/140mm of rear/front travel to make it more stable and confidence-inspiring on the downhills without sacrificing the maneuverability and versatility of its predecessor.
The Kona Process 134 29 impressed our testers with its impressively capable and confidence-inspiring performance on the descents. This bike is ready for anything and really comes to life when you let it run or get into steeper, rougher terrain. It's not quite as well-rounded and it doesn't have the higher-end suspension components of the Polygon, but it feels plenty capable regardless. Likewise, the shorter travel Marin Rift Zone 29 has a modern geometry that lends itself to pushing the envelope of speed and terrain. This bike is limited somewhat by its travel length but is more capable than you might expect when the going gets steep and rough.
The short-travel Giant Trance 29 3 may not be the hardest-charging bike on the descents, but it brings a playful attitude and more capability than its short-travel numbers might suggest. If you're more interested in popping side hits than plowing through rock gardens at speed, then the Trance 29 might be right up your alley. The Trek Fuel EX 5 is a very comfortable and competent bike on the descents. This mid-travel ride has supple suspension and a smooth ground-hugging feel. It may not have a lot of pop or pizzazz, but it certainly was capable and fun to ride on a huge range of terrain and speeds.
The affordable short travel Polygon Siskiu D7 isn't exactly a downhill crusher, but we found it perform well when kept within its limits. On smooth, flowy trails, and even some moderately rough ones, this bike comes to life with a lively and playful character and quick handling.
You gotta get up to get down, and as mountain bikers, we typically spend the majority of our time riding while going uphill. A bike's weight, geometry, suspension design, and components all play a role in how well a bike performs while climbing, and some are better suited to it than others.
Considering its downhill performance scores, the Polygon Siskiu T8 performs very well on the climbs. This bike feels fast-rolling and has a comfortable seated pedaling position and geometry that performs well in a range of uphill riding situations. Predictable and consistent traction combines with precise and direct steering to make earning those descents more pleasurable than most.
One of the fastest and most comfortable climbers, the Giant Trance 29 3 is a short travel ripper that performs very well on climbs. The Trance 29 feels quick and energetic when pointed up the hill, with comfortable geometry and reasonable weight compared to many of the other models in this test. Similarly, the Polygon Siskiu D7 proved to be a solid uphill performer. Its comfortable geometry and clam pedaling platform made for an impressively efficient feel despite its moderate 33 lb weight.
Both the Kona Process 134 29 and the Trek Fuel EX 5 were plenty competent but relatively unimpressive on the climbs. Both bikes work just fine, but their heavier weights definitely contribute to lethargic and unexciting climbing performance.
Every bike we tested comes with a different component specification, or build, that is determined by the manufacturer. The components of a mountain bike are one of the primary factors that influence not only performance but also the retail price. In the sub $2500 price range, a few hundred dollars goes a long way in the quality of components attached to a frame, and generally speaking, you're better off spending a little bit more for a better build. It took a while, but in recent years higher-end technology has finally begun to trickle down to less expensive mountain bikes and sometimes the differences between the high and low-end versions of components is negligible. One thing is certain, most of the budget-conscious bikes in our test selection are trail-worthy and shred-ready. It's important to note that all of the moving parts on mountain bikes eventually require maintenance. Brakes, drivetrains, suspension, dropper posts, if they move they will eventually wear out, and the more you ride the faster it will happen.
One of the most impressive builds in our test selection is that of the Polygon Siskiu T8. It boasts a stout suspension package that controls the front and rear wheel travel better than the lower-end components on other models in this price range. It also comes equipped with powerful brakes, quality wheels and tires, a dropper post, and an excellent Shimano 12-speed SLX drivetrain that is ready to ride without the need for any immediate upgrades.
The Giant Trance 29 3, has a good component specification for the price. It can't match the build on the Polygon, but it gets the job done for less. It has a comfortable cockpit, plush suspension, a 12-speed drivetrain, and a particularly shred-ready set of wheels and tires.
The build of the Kona Process 134 isn't particularly eye-catching, but they did nail many important components that help to make it so capable on the trail. A dropper seatpost, modern cockpit, and a burly tire combo all combine to enhance this bike's downhill confidence and control. Likewise, the Marin Rift Zone 29 has a build that doesn't hold it back on the trail. Aggressive tires, a long dropper, and a wide handlebar help to enhance handling and control.
Considering its impressively low price, the Polygon Siskiu D7 has a relatively nice build that gets the job done. While budget-minded, Polygon did a fine job of outfitting this bike with reliable components that enhance its on-trail performance and nothing needs to be upgraded to get out and have a good time.
There's a lot to consider when you're looking into buying a new full suspension mountain bike. The good news is you don't have to take out a second mortgage to afford one. There are several mountain bikes under $2500 that are capable and versatile rides that'll get you out on the trail with a smile on your face. Our professional mountain bike testers took these bikes to their limits and our findings are presented here for you in this in-depth comparative review. We hope the information we've gathered helps you decide which is the best bike for you based on your riding style and budget.
— Jeremy Benson, Joshua Hutchens, and Kyle Smaine
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