TST All-Terrain Fat Tire Electric Dirt Bike 1500W
- Size: 20 Inches
- Color: Obsidian Black
- Asin: B0FZGZMCDR
- Customer Reviews: {'ratings_count': '49', 'stars': '4.5'}
Last refreshed Jun 21, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
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ASIN: B0FZGZMCDRModel: R9Category: Electric Bicycles
More from this brandAll TS TST GRP LLC electric bicyclesColors Available
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Overview
A 20 inch fat tire electric bike with a 1500W peak motor, a 48V battery available in 15Ah or 25Ah, and a top speed regulated at 28 mph in the US, built with full suspension and dual mechanical disc brakes.
The battery is tested to the UL 2849 safety standard, and the bike offers three ride modes: pure electric, pedal assist and pedal only.
- 1500W peak motor with 90 N·m of torque
- 48V battery available in 15Ah or 25Ah
- 20 by 4.0 inch tires with full suspension
- Battery tested to the UL 2849 safety standard
Who it's for
Commuters and shorter or average-height riders, several of whom describe a comfortable fit around 5 feet 2 inches. Taller riders note sustained pedaling is less comfortable on this frame.
Pros and cons
- Comfortable fit for shorter and average-height riders
- Reaches its 28 mph rated speed reliably
- Customer service replaced a defective inner tube promptly
- Sustained pedaling uncomfortable for taller riders
- Assembly can take up to two hours
Performance notes
The 1500W peak motor delivers 90 N·m of torque, with a top speed adjustable via app but capped at 28 mph in the US. Dual mechanical disc brakes and 360 degree LED lighting are built in, and the 20 by 4.0 inch tires pair with front suspension for rough surfaces.
Specifications
| Brand | TS TST GRP LLC |
|---|---|
| Model | R9 |
| Dimensions & fit | |
| Size | 20 Incheslower than 55% of 98 electric bicycles |
| Construction & materials | |
| Color | Obsidian Black |
| Other details | |
| Asin | B0FZGZMCDR |
| Customer Reviews | {'ratings_count': '49', 'stars': '4.5'} |
| Manufacturer | Shenzhen Uni-Chic Technology Co.,Ltd |
| Model Name | R7 |
| Style | Mountain |
| Date First Available | November 4, 2025 |
Closest rivals on specs
Frequently asked questions
Is this bike suitable for shorter riders?
Yes, one reviewer around 5 feet 2 inches and another described as height challenged both found the step-through fit comfortable.