Radster™ Road Electric Commuter Bike

The Radster™ Road Electric Commuter Bike is a high-performance Class 3 commuter e‑bike with a powerful 750 W motor, torque-sensing system, robust suspension, reliable Shimano drivetrain, hydraulic braking, and full safety/accessory package—including lights, rack, fenders, and security lock—packed into a durable aluminum frame. Its strengths are speed, range, and commuter readiness, though at a heft of ~74–75 lbs it’s heavier than typical urban bikes.

Specifications

• Motor: 750 W rear-hub, 100 Nm torque (peak), delivering up to 28 mph in Class 3 (ships in Class 2)
• Pedal Assist: Torque-sensor system with 5 PAS levels plus “zero-assist” (throttle-only mode)
• Throttle: Half-twist grip, active up to 20 mph
• Battery: 48 V, 15 Ah (720 Wh) Safe Shield semi-integrated, UL‑2271/UL‑2849 certified (Samsung or LG cells)
• Charger: 48 V DC, 2 A smart charger (100–240 V AC; ~4–6 hr full charge)
• Display/Controls: Color LCD, class mode switching (1–3), speed, power, odometer, USB‑C port, passcode/RFID lock

• Frame: Aluminum mid-step; two frame sizes:
  
  • Regular: for riders 4′11″–5′8″
  • Large: 5′7″–6′4″
• Fork: SR Suntour hydraulic suspension, 80 mm travel, thru-axle
• Drivetrain: Shimano 1×8-speed, 50 T chainring, 11–34 T cassette, Shimano derailleur and thumb shifter

• Tires: 29″ × 2.2″ Kenda Kwick with puncture protection and reflective sidewalls
• Brakes: Tektro E350 hydraulic disc brakes with dual 180 mm rotors
• Lights: ~200 lumen auto-on LED headlight; rear integrated taillight with brake light and turn signals
• Fenders & Rack: Full alloy fenders, chain guard, rear rack rated at 55 lb payload
• Extras: Bell, ergonomic grips, adjustable kickstand, side-profile chain guard

• Weight (Regular): ~74.5 lbs with battery; ~65.5 lbs without
• Weight (Large): ~75 lbs with battery; ~65 lbs without
• Payload: Maximum rider weight 290 lb; total payload 320 lb
• Top Speed: 20 mph in Class 1/2; 25 mph in Class 3 limited; full Class 3 ~28 mph
• Range: Manufacturer estimate 25–65 mi per charge