TST All-Terrain Fat Tire Electric Dirt Bike 60/130 Miles
- Wheel Size: 20 inches
- Size: 20 Inches
- Electric Assist Type: pedal assist, throttle assist
- Brake Style: Disc
Last refreshed Jun 21, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A strong value fat tire e-bike for hills and mixed terrain according to most buyers, but confirm brake hardware and check for stripped bolts on arrival given at least one documented factory quality issue.
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ASIN: B0G9QVJK2SModel: R9Category: Electric Bicycles
More from this brandAll TS TST GRP LLC electric bicyclesColors Available
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Overview
A fat tire electric dirt bike from TST with a 1500W peak motor and 90 N.m of torque, built around a removable 48V battery in 15 or 30AH sizes for riders who want an off-road capable commuter with passenger capacity.
TST rates the battery to 60 miles or more depending on the AH size chosen, and the bike is UL 2849 tested by SGS.
- 1500W peak motor, 90 N.m torque, 35 degree slope rating
- 48V 15 or 30AH removable battery, UL 2849 tested by SGS
- 20x4.0 puncture-proof tires with full suspension
- 360 degree LED lighting including headlight, brake light and turn signals
Who it's for
Suits riders who want a powerful fat tire e-bike for mixed street and off-road use and value a 35 degree hill-climbing rating and passenger capability. Less suited to buyers who need every listed spec to be exact out of the box.
Pros and cons
- 1500W peak motor rated for 35 degree slopes
- Removable, waterproof 48V battery in 15 or 30AH sizes
- Passenger-capable with rear pegs and extended seat
- Straightforward assembly with a complete included tool kit
- One buyer found the disc brakes are not actually hydraulic as described
- Reports of stripped factory bolts blocking fender installation
- Only a 6-month warranty
Performance notes
Pure electric mode reportedly reaches 30MPH with strong torque, and switching to pedal or assist mode extends range for everyday commuting.
Specifications
| Brand | TS TST GRP LLC |
|---|---|
| Model | R9 |
| Dimensions & fit | |
| Wheel Size | 20 inches |
| Size | 20 Incheslower than 55% of 98 electric bicycles |
| Capacity & performance | |
| Number Of Speeds | 7 |
| Bicycle Drivetrain Type | Chain Drive |
| Bicycle Gear Shifter Type | Twist Grip |
| Age Range Description | Adult |
| Power & efficiency | |
| Power Source | Electric Motor |
| Construction & materials | |
| Frame Material Type | Aluminum |
| Wheel Material | Rubber |
| Included components | |
| Included Components | Bell |
| Warranty & support | |
| Warranty Type | Limited |
| Other details | |
| Electric Assist Type | pedal assist, throttle assist |
| Brake Style | Disc |
| Suspension Type | Dual |
| Bike Type | Electric Bike |
| Derailleur Configuration | Rear |
| Is Assembly Required | No |
| Specific Uses For Product | Trail |
| Theme | Motorcycle |
| Additional Features | LCD-Display |
Closest rivals on specs
Frequently asked questions
How long does the battery take to charge?
TST states the battery fully charges in about 5 hours.