8000W Dual Motor Electric Bike for Adults
- Electric Bicycle
- 26 inches
- 420 pounds
- 1560 Wh
- Better rated than 77%
A high output dual motor fat tire ebike with strong claimed range, best suited to riders comfortable navigating the registration rules that come with a 55 mph unloaded top speed.
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How it ranks among the 478 electric bicycles we track
5.0★ across 1 Amazon ratings, Bayesian-smoothed toward the category average.
1 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 478 electric bicycles we track - how the scorecard works · full electric bicycles data report. Confidence: limited - limited rating history.Last refreshed Jun 21, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
The V9 from Yhaayh pairs two 4000W hub motors for a claimed 8000W peak system output, a 52V 30Ah (1560Wh) removable battery rated for up to 120 miles, and 26 x 4.0 inch fat tires with full suspension. It is built for adults who want more power than a typical commuter ebike.
At a claimed 55 mph unloaded top speed, this sits well above the 20 to 28 mph range that defines a typical Class 1 to 3 ebike in most US states, so it behaves more like a light electric motorcycle than a bicycle. Riders should check local ebike and moped registration rules before buying. The battery carries TUV SUD UL2271 certification, a meaningful safety marker for a pack this large.
- 8000W peak dual motor system, 220 N*m torque per motor
- 52V 30Ah (1560Wh) removable battery, UL2271 certified
- 26 x 4.0 inch fat tires with full suspension
- 4 piston hydraulic disc brakes and 1000 lumen headlight
Who it's for
Fits riders who want dual motor power and long claimed range from a fat tire ebike, and who are prepared to check local speed and registration rules given a 55 mph unloaded top speed. Not a fit for anyone who wants a conventional pedal first commuter bike within standard ebike speed limits.
What buyers say
From Amazon customer reviews.
The one review on file describes the frame as sturdy and the motor as strong, with parts that feel well made, and reports smooth handling on both streets and paths with controls simple enough for anyone to use.
Strengths and trade-offs
Drawn from this product's published specifications.
- Dual 4000W motors with a claimed 8000W peak system output
- Large 1560Wh battery rated for up to 120 miles and 2000+ cycles
- Full suspension with adjustable front fork
- 4 piston hydraulic disc brakes and integrated lighting
- 55 mph unloaded top speed exceeds standard ebike speed classes
- Large battery and 420 lb capacity add significant bulk
- Only one review available
Performance notes
The two 4000W hub motors combine for a claimed 220 N*m of torque each and a stated ability to climb 40 degree grades. A non locked controller lets the rider switch between rear wheel and dual motor drive, and briefly pressing the throttle release unlocks full speed. The 1560Wh battery is rated for over 2000 charge cycles and reaches full charge in 5 to 7 hours with the included 3A fast charger. Full suspension pairs an adjustable hydraulic front fork with a rear shock for rougher terrain.
Specifications
| Brand | Yhaayh |
|---|---|
| Model | V9 |
| Dimensions & fit | |
| Wheel Size | 26 inches |
| Maximum Weight Recommendation | 420 pounds |
| Size | Medium |
| Capacity & performance | |
| Bicycle Drivetrain Type | chain drive |
| Number Of Speeds | 7 |
| Age Range Description | Adult |
| Power & efficiency | |
| Lithium Battery Energy Content | 1560 Wh |
| Wattage | 8000 watts |
| Construction & materials | |
| Frame Material Type | Aluminum |
| Color | black |
| Included components | |
| Unit Count | 1 |
| Included Components | Battery, Charger, Headlight, Power Cable |
| Warranty & support | |
| Warranty Description | 1 year |
| Other details | |
| Bike Type | Electric Mountain Bike |
| Suspension Type | Full Suspension |
| Electric Assist Type | hub motor, throttle assist |
| Is Assembly Required | Yes |
| Additional Features | Adjustable Handlebars, Digital Display, Dual Disc Brake, Dual Suspension, Multi-Speed |
| Brake Style | Disc |
| Specific Uses For Product | Freestyle, Jumping, Racing, Road, Trail, Snow, Road, Gravel,Commute, Beach, Mountain |
| Style Name | Classic |
| Theme | Sport |
Other Yhaayh electric bicycles
How it compares
This product against the closest alternatives we track in electric bicycles.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| 8000W Dual Motor Electric Bike for AdultsThis product | 5.0 / 5 | 1 | 2.7 / 5 |
| Wooken Electric Bike for Adults with 500W MotorWooken | 4.4 / 5 | 312 | 4.1 / 5 |
| TotGuard Electric BikeTotGuard | 4.4 / 5 | 286 | 4.1 / 5 |
| ANCHEER 14" Folding Electric Bike for TeensAncheer | 4.2 / 5 | 329 | 4.0 / 5 |
| Gotrax 16" Folding Electric BikeBrand | 4.4 / 5 | 555 | 4.0 / 5 |
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Questions about the Yhaayh V9
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
How fast does the Yhaayh V9 go?
The listing states up to 55 mph unloaded, dropping to about 48 mph with a 75 kg rider aboard.
How far can the V9 travel on one charge?
Up to 120 miles, according to Yhaayh, though actual range depends on riding mode, terrain, speed and rider weight.
Is the V9 street legal as a bicycle?
That depends on local law. At a claimed 55 mph top speed it exceeds the 20 to 28 mph range that defines Class 1 to 3 ebikes in most US states, so check registration rules before riding it on public roads.