Tiazhyu C8 Dual Motor Fat Tire Electric Bike
- Size: Medium
- Wattage: 8000 watts
- Brake Style: Disc
- Suspension Type: Front
Last refreshed Jun 21, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A genuinely powerful dual-motor build with certified battery and brake hardware, but early owner feedback suggests real range falls short of the claimed 100 miles when both motors are engaged.
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ASIN: B0GSV12S1DModel: C8Category: Electric Bicycles
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Overview
The Tiazhyu C8 is a dual-motor electric bike with a combined 8000W peak output, a 52V 26Ah battery rated near 100 miles, and 26x4-inch fat tires on a 6061 aluminum frame rated to 400 lbs.
Tiazhyu positions the C8 as a high-power option for steep grades and mixed terrain, with the seller specifying a 47 mph top speed carrying a 165 lb rider versus 50 mph unloaded, and 222 Nm of torque for climbing 45-degree slopes. The battery carries IP67 and UL2271 certification, and the frame is built for riders from about 5-foot-2 to 6-foot-8. Buyer feedback so far points to a real-world range gap between single-motor and dual-motor use.
- Dual 4000W motors, 8000W combined peak
- 52V 26Ah battery, up to 100 miles claimed
- 26x4-inch fat tires, 400 lb load rating
- UL2271 battery / UL2849 system certification
Pros and cons
- Strong torque for steep climbs and load
- UL2271/UL2849 certified battery and system
- 4-piston hydraulic dual disc brakes
- 6 riding modes including single or dual motor
- Real range drops sharply in dual-motor mode
- Assembly hardware reportedly under-torqued from factory
- 400 lb frame rating means a heavier overall bike
Performance notes
Torque and top speed scale with load: Tiazhyu quotes 50 mph unloaded but 47 mph with a 165 lb rider, and the 222 Nm torque figure is what lets it handle 45-degree slopes. One reviewer measured about 25 miles on single-motor assist but under half that running both motors, showing the 100-mile claim depends heavily on which motor mode and terrain are used. The 52V 26Ah battery recharges via 3A fast charging in the stated 5 to 7 hours.
Specifications
| Brand | Tiazhyu |
|---|---|
| Model | C8 |
| Dimensions & fit | |
| Size | Medium |
| Item Weight | 68 pounds |
| Capacity & performance | |
| Number Of Speeds | 7 |
| Age Range Description | Adult |
| Power & efficiency | |
| Wattage | 8000 wattshigher than 97% of 197 electric bicycles |
| Construction & materials | |
| Frame Material Type | Aluminum |
| Color | Black |
| Warranty & support | |
| Warranty Description | 1 year |
| Other details | |
| Brake Style | Disc |
| Suspension Type | Front |
| Bike Type | Commuting Bike, Electric Bike |
| Specific Uses For Product | Freestyle, Racing, Road, Snow, Trail |
| Style Name | Classic |
| Theme | Sport |
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Frequently asked questions
How much torque does the Tiazhyu C8 dual motor produce?
The listing specifies 222 Nm of torque, with a top speed of 50 mph unloaded and 47 mph carrying a 165 lb rider.
Does the Tiazhyu C8 really get 100 miles per charge?
That figure is the maximum claim; a reviewer reported closer to 25 miles on single-motor assist and less than half that running both motors together.
What certifications does the Tiazhyu C8 battery carry?
Tiazhyu lists IP67 water and dust protection along with UL2271 (battery) and UL2849 (e-bike system) certification.