Testers were impressed by the mountain-style Blue Spark Class 2 electric bike, and this was our highest-rated model. This bike's 350W rear hub motor is robust, with good acceleration, a 20 mph top throttle speed, and five pedal assist modes. In our distance-range test, it bested the competition and traveled the farthest thanks to its larger 374Wh battery capacity. It rolls on 27.5-inch wheels, giving it predictable handling and smooth, stable ride quality. It also has ergonomic controls and an excellent digital display that provides a wealth of information at a glance. It comes with a suspension fork and slightly knobby tires that make it suitable for smooth dirt roads and paths. We love this budget electric bike for anyone who wants the best bang for their buck.Editor's Note: The Ancheer 27.5-inch Blue Spark Electric Bike review was updated on February 2, 2022, with additional information on what we would buy and more tips and product comparisons.
Ancheer 27.5-inch Blue Spark Electric Bike Review
Cons: Seatpost too short for taller riders, no instructions for the display
Compare to Similar Products
Ancheer 27.5-inch Blue Spark Electric Bike
$1,000 at Amazon
$689.88 at Amazon
$699.99 at Amazon
$539.99 at Amazon
|Pros||Faster, longer distance range, good handling, 5 pedal assist modes, good display and controls||Feature packed, long distance range, comes ready to carry lots of cargo, 20 mph top speed||Long distance range, removable battery, step-thru design, retro style, comfortable ride||"Mountain bike" style, affordable, headlight, 21-speed drivetrain||Affordable, folding, decent distance range, 3 pedal assist modes|
|Cons||Seatpost too short for taller riders, no instructions for the display||Only 1 pedal assist level, basic display and controls||Display is hard to read in bright light, 15.5 mph top speed||Limited distance range, limited seat height adjustment, mediocre user-interface||Funky handling, doesn't fold as easily/small as competition, limited rider height range|
|Bottom Line||A fast, powerful mountain style Class 2 electric bike with an impressive distance range||If range, comfort, and carrying capacity are important to you, this is a reasonably priced Class 2 e-bike to consider||A reasonably priced Class 2 electric bike with a great distance range and retro styling||An affordable mountain-style Class 2 electric bike with a serviceable performance that gets the job done||This convenient Class 2 folding model has a respectable all-around performance and is an excellent value|
|Rating Categories||Ancheer 27.5-inch B...||Nakto 26-inch 250W...||Macwheel 26-inch||Ancheer AN-EB001 26...||Ancheer Folding 16-...|
|Specs||Ancheer 27.5-inch B...||Nakto 26-inch 250W...||Macwheel 26-inch||Ancheer AN-EB001 26...||Ancheer Folding 16-...|
|Battery Size (Wh)||374||360||360||288||288|
|E-Bike Class||Class 2||Class 2||Class 2||Class 2||Class 2|
|Motor Power (torque)||350W||250W||250W||250W||250W|
|Number of pedal assist settings||5||1||5||3||3|
|Top speed throttle (tested)||20 mph||20 mph||15.5 mph||17 mph||17.5 mph|
|Top speed pedal-assist (tested)||20.5 mph||20 mph||15.5 mph||19.5 mph||18 mph|
|Distance Range (throttle-only test)||20.25 miles||19.6 miles||21.25 miles||14.84 miles||15.42 miles|
|Frame material||Aluminum||Steel||Aluminum||Aluminum||High strength carbon steel|
|Maximum rider weight (lbs)||330||250||200||330||220|
|Measured Weight (w/o pedals, Medium)||49 lbs 5 oz||61 lbs||48 lbs 9 oz||47 lbs 6 oz||46 lbs 15 oz|
|Drivetrain||24 speed Shimano Altus||Shimano 6-speed||Shimano 6-speed||21 speed Shimano Tourney||Single speed|
|Brakes||Mechanical disc||V-brake front, Coaster rear||V-brakes||Mechanical disc||Mechanical disc|
|Additional features||Bell, headlight, tools, digital display||Basket, headlight, cargo rack, horn, suspension fork…?||Headlight, fenders, rear rack||Headlight, horn||Bell, fenders, headlight, tools, folding pedals|
|Warranty||Two Years on frame, One year on battery, motor, and components||One Year||One Year||One Year Limited||One Year Limited|
Our Analysis and Test Results
The Blue Spark is one of many affordable Class 2 electric bike models made by Ancheer. This model has a mountain bike style and rolls on 27.5-inch wheels. It has a 350W brushless rear hub motor and a 374Wh battery combined to give it the longest distance range and make it one of the most powerful models we tested. Add to that an excellent user interface and good all-around handling, and it quickly became a tester favorite.
We found the Blue Spark to have comfortable and predictable handling in virtually all situations in our testing. It earned an 8 out of 10 in this metric and is on par with both the Nakto City and the Macwheel. Whether cornering at high or low speeds or cruising downhill at top speed, it felt calm and composed and responded well to rider input. This bike's larger wheels, tires, and suspension fork also help to dampen the ride and take the edge off impacts.
We were pleasantly surprised by the Blue Spark's performance in our handling tests. In our cornering tests, we found that it made nice rounded turns with a smooth and predictable feel. It handles both short turns and long turns with the same consistency and control. It responded well to steering input at high and low speeds and never felt unsteady the way bikes with smaller wheels can. At 20 mph, while bombing down our test hill, it felt stable and unflappable thanks to its 27.5-inch wheels and longer wheelbase.
We found the components attached to the Blue Spark to work relatively well throughout testing. Neither the drivetrain nor the brakes required any adjustment out of the box, and once we put this bike together, it was ready to roll without additional tinkering. The 24-speed Shimano drivetrain provides a huge gear range and ensures pedaling will be plenty easy even if you run out of battery mid-ride. We found the mechanical disc brakes to perform well, although they felt a little inconsistent, with a stopping distance of 22 feet in our full-speed stopping test. This bike does come with a suspension fork, which gets about 2 inches of sticky and inconsistent travel. While it helps with more significant impacts, this fork is more for show than its suspension performance. It also comes with 1.95-inch wide tires with a bit of knobby tread on them. These higher volume tires help smooth over the rough stuff and provide a little traction should you choose to do some light-duty dirt road or trail riding. That said, we wouldn't recommend doing any hardcore mountain biking on this bike despite its mountain bike looks.
The overall comfort of the Blue Spark was relatively average. The seat was agreeable for long periods of riding while testing and our testers enjoyed the slightly wider handlebar. This bike does not have an adjustable stem, although it has a decent seat height range. Ancheer claims a rider height range of 5'1" to 6'4", but we respectfully disagree with that. Our six-foot-tall tester with a 32-inch inseam was nowhere close to getting proper leg extension while pedaling with the seat height maxed out. Sure, taller riders can use this bike, but you'll certainly want to get a longer seat post if you intend to do any pedaling.
We were impressed by the Blue Spark in our distance range testing, and it took top honors and bested the competition earning a perfect score of 10. This distance wasn't too surprising given its larger battery storage capacity, and it went the distance on our test course. If an electric bike's range tops your list of performance attributes, this bike should be on your radar.
The Blue Spark comes with a 374Wh battery (36V 10.4Ah), as opposed to the smaller 288Wh batteries found on several of the other bikes we tested. The more battery power you have, the longer your bike can theoretically travel, and this bike proved that in our testing. Using the throttle only, we went 20.25 miles with 1,171 feet of elevation gain/loss in 1 hour and 24 minutes. Our average speed was 14.5 mph with a top speed of 21.9 mph while cruising one of the downhill sections. While it may not have held the fastest average speed during this test, it outran most other models in the test with similar battery capacity. Only the Macwheel beat this distance.
The Blue Spark proved to be one of the most powerful models we tested with great acceleration and a high top speed, earning a 9 out of 10. You can use it in full-electric/throttle mode or in its five pedal assist modes in conjunction with pedaling with a robust 350W brushless rear hub motor. It easily outperformed most of the competition with its impressive power output.
On flat ground, the Blue Spark's 350W rear hub motor quickly propelled us up to a top speed of just under 20 mph while using the throttle only. Its acceleration felt the fastest and most powerful of the bikes we tested by a slim margin. Once up to speed, it could easily hold it there as long as the terrain remained flat. We also found that it held its rate going up moderately pitched hills during our range testing. It crested our short test hill at 13 mph, where some competitors struggled to stay above 10 mph. Unlike some of the other bikes we tested, the throttle only works when the pedal assist is turned on.
We were also quite impressed with this bike's powerful pedal-assist output. It has five output settings that provide a good range of support from around 30% to 100%. The assistance comes on suddenly after about a quarter pedal stroke, and it hangs on for about a second once the pedals stop turning. The bike provides the same amount of output regardless of how hard you are pedaling, and it can occasionally feel a bit jumpy if you're in an easy gear and high output setting. We found the top pedal-assisted speed to be right around 20.5 mph, and it was easier to get to and hold that speed than on most of the other bikes we tested.
The Blue Spark has an excellent user interface that consists of ergonomically friendly handlebar-mounted controls and a digital display centered over the stem. This user interface was one of the best we tested, and it earned a 9 out of 10. However, it lost a little ground because it didn't come with any instructions.
The controls consist of a small handlebar-mounted unit attached to the left grip. There are five buttons, power, backlight, info, and + and -. The power button is used, not surprisingly, to turn the bike's power on and off. You can use the backlight button to turn the display screen's backlight on or off, and the info button is used to scroll through different data fields at the bottom of the display. The + and - buttons are located left of the unit closest to the grip and are very easy to reach to shift up or down through the five pedal assist modes. The right-hand grip is home to a standard twist throttle used to engage the throttle when using full-electric mode.
The Blue Spark has an excellent digital display mounted in the center of the handlebar above the stem. This location makes it especially easy to see while riding, and it displays a wealth of information at a glance. It shows current speed, remaining battery life, pedal-assist setting. By pressing the info button on the controls, you can choose what the bottom field shows (average speed, max speed, trip distance, odometer, or elapsed time). The screen also has a backlight that you can use at night or in challenging lighting conditions. It also has a headlight that helps in these scenarios. While we loved the display on this bike, we were quite dismayed by the fact that it didn't come with any instructions. We are sure that you can change the settings, but we couldn't figure out how for the life of us, and we were stuck viewing our speed and distance in kilometers instead of miles. Trial and error and internet searches left us scratching our heads.
The battery easily slides into position on the frame's down tube and can be locked in place using the included keys. The battery can be charged on or off the bike using the included charging cord, which plugs into a standard charging port. Ancheer claims a battery charging time of six hours.
The Blue Spark was in good company in our ease of assembly testing, and it scored right alongside the majority of the bikes we tested with a 7 out of 10. It arrived about 80% assembled, with only the usual simple steps required to finish putting it together. It took approximately 45 minutes to get it from the box to be ready to ride.
Like most of the bikes we tested, the Blue Spark arrived in a standard-size bike box and was generously protected from shipping damage with various packing materials. After unboxing and removing the protective materials from the bike, it became evident that most of the assembly was already completed. The remaining steps included attaching the front wheel, handlebar, and seat post. There were also the additional easy steps of securing the digital display, reflectors, bell, and headlight (which didn't come with batteries), all of which were quite simple and only added a couple of minutes to the process. This bike also came with a small tool kit and very detailed instructions for every step in the remaining assembly process. Not only were the assembly instructions detailed, but the user manual also included step-by-step instructions for tuning both the front and rear derailleurs, which could come in handy if you ever try to do your own maintenance or repairs. The final step was sliding the battery in place on the bike's downtube and plugging it in to charge.
Should You Buy the Ancheer 27.5-inch Blue Spark Electric Bike?
The Blue Spark is a reasonably priced mountain bike-style e-bike that impressed us with its power output and distance range. This bike went farther than the competition in our distance range testing with comfortable and predictable handling and an excellent user interface. If top speed and distance range are essential in your buying decision, we feel this is a great option to consider. We do not hesitate to recommend it to anyone.
What Other Budget Electric Bikes Should You Consider?
Considering its good ride quality, strong power output, and impressive distance range, it would be hard not to love the Blue Spark, and it is one of our favorite electric bikes. Although it is the most expensive bike in this review, it is easily our highest-rated model. If you're looking for an affordable electric bike with a mountain bike style, we feel this is the best you'll find in this price range. If this price seems a bit steep for you, the Ancheer AN-EB0001 is another mountain bike-style model. It has slightly lower overall performance but a price tag that is much more manageable for those on a budget.
— Jeremy Benson
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