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The TST Surfer is a 27.5" step-through commuter electric bike with a 1000W SUTTO (Bafang) motor, 45 Nm torque, and 23 mph top speed. Features 48V 15Ah Samsung/LG battery for up to 65 miles of range, 27.5x2.25" tires, Shimano 7-speed, hydraulic disc brakes, front suspension, and LCD display.
In brief: 750W Commuter. 48V 15Ah battery. Up to 37 km/h. Aluminum frame. From $899.
Specs verified Jun 14, 2026
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Specifications
Classification
- Bike Type
- Commuter
Motor
- Motor Position
- Rear Hub
- Wattage
- 750W
- Peak Wattage
- 1000W
- Torque
- 45.00 Nm
- Top Assist Speed
- 37 km/h
Battery
- Voltage
- 48.0V
- Capacity
- 15Ah
- Energy
- 720Wh
- Chemistry
- Li-ion
- Estimated Range
- Up to 105 km
- Removable
- Yes
Frame & Build
- Frame Material
- Aluminum
- Frame Style
- Step-Through
- Wheel Size
- 27.5" / 650b
- Folding
- No
Drivetrain & Brakes
- Gears
- 7-speed
- Drivetrain
- Derailleur
- PAS Levels
- 5
- PAS Sensor
- Cadence
- Throttle
- Yes
- Brakes
- Hydraulic Disc
Features
- Max Payload
- 204 kg
- Suspension
- Front Only (Hardtail)
- Integrated Lights
- Yes
- Rear Rack
- Yes
- Fenders
- Yes
- Color
- Red
