TST R7 Step-Thru Fat Tire Electric Bike
- 1500W peak motor (750W rated), 90 N.m torque
- 48V 15AH removable battery, 60-80 miles
- 450 lb max load, rider plus passenger
- 20 x 4.0 inch fat tires, dual suspension
- Dual hydraulic disc brakes, UL2849 certified
- 82.7 lb, 7 speeds
Last refreshed Jun 21, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A capable two-up fat tire bike for riders who want hill power and room for a passenger. Top speed is not listed, and the warranty period is short.
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ASIN: B0GQD9BKXHModel: R7Category: Electric Bicycles
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Overview
Carrying a passenger on the rear seat and foot pegs is what sets the TST bike apart, backed by a strong hub motor and a removable battery. The low step-thru frame, fat tires and front and rear suspension handle sand, snow and city streets.
A high load limit and passenger seat turn it into a two-person commuter, while hydraulic brakes help stop that weight. It is heavy to lift, needs assembly, and the warranty covers only key parts for a limited period.
Who it's for
Made for adults riding mixed terrain who value climbing power and passenger capacity. Riders in walk-up apartments or who need a light folding bike will struggle with the weight.
Pros and cons
- Passenger seat and foot pegs
- Strong climbing torque
- Removable locking battery
- Hydraulic brakes front and rear
- Top speed not listed
- Heavy to lift
- Short warranty period
Performance notes
Torque from the motor drives hill climbing, while range depends on rider and passenger weight and assist level. Fat tires and dual suspension soften rough ground but add rolling resistance on pavement.
Specifications
| Brand | TS TST GRP LLC |
|---|---|
| Model | R7 |
| Dimensions & fit | |
| Maximum Weight Recommendation | 450 Pounds |
| Wheel Size | 20 Inches |
| Wheel Width | 4 Inches |
| Item weight | 82.7 lb |
| Capacity & performance | |
| Wattage | 750 watts rated, 1500W peak |
| Number Of Speeds | 7 |
| Bicycle Gear Shifter Type | Thumb |
| Range | 60-80 miles |
| Power & efficiency | |
| Battery | 48V 15AH removable, anti-theft lock |
| Construction & materials | |
| Frame Material Type | Aluminum |
| Included components | |
| Included Components | Battery, charger, tool kit, user manual |
| Warranty & support | |
| Warranty Description | 180-day |
| Other details | |
| Brake Style | Dual hydraulic disc |
| Suspension Type | Dual |
| Torque | 90 N.m |
| Is Assembly Required | Yes |
| Hill climbing | Up to 30 degree grades |
| Certification | SGS certified to UL2849 |
Frequently asked questions
Can the TST R7 carry a passenger?
Yes. It has a rear seat and foot pegs, with a 450 lb maximum load for rider and passenger combined.
Is the TST R7 battery removable?
Yes. The 48V 15AH battery is removable, with a built-in anti-theft lock.
Does the TST R7 arrive assembled?
No. Assembly is required, and a tool kit is included.