Yhaayh V9 Dual Motor Fat Tire Electric Bike
- Maximum Weight Recommendation: 420 pounds
- Wheel Size: 26 inches
- Size: Medium
- Lithium Battery Energy Content: 1560 Wh
Last refreshed Jun 21, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
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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ASIN: B0GSYD1621Model: V9Category: Electric Bicycles
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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.
Pros and cons
- 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.
Where it stands among electric bicycles
- 1560 Wh lithium battery energy content: longer than 90% of the electric bicycles we list.
From the specs of the 502 electric bicycles we list; not a test result.
Specifications
| Brand | Yhaayh |
|---|---|
| Model | V9 |
| Dimensions & fit | |
| Maximum Weight Recommendation | 420 poundshigher than 91% of 266 electric bicycles |
| Wheel Size | 26 incheshigher than 63% of 409 electric bicycles |
| Size | Medium |
| Capacity & performance | |
| Number Of Speeds | 7 |
| Bicycle Drivetrain Type | Chain Drive |
| Age Range Description | Adult |
| Power & efficiency | |
| Lithium Battery Energy Content | 1560 Whhigher than 90% of 221 electric bicycles |
| Wattage | 8000 wattshigher than 97% of 197 electric bicycles |
| 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 | |
| Electric Assist Type | hub motor, throttle assist |
| Brake Style | Disc |
| Suspension Type | Full Suspension |
| Bike Type | Electric Mountain Bike |
| Is Assembly Required | Yes |
| Style Name | Classic |
| Theme | Sport |
Closest rivals on specs
Frequently asked questions
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.