Radster™ Trail Electric Off-Road Bike

The Radster™ Trail from Rad Power Bikes is a versatile, high-performance electric off-road bike designed for everything from daily commutes to light trail riding.

Specifications

• Motor: 750 W rear-hub motor with 100 Nm torque (regulated slightly under 750 W in compliance with e‑bike laws)
• Pedal Assist: Torque sensor with 5 PAS levels + zero‑assist
• Throttle: Half-twist grip throttle
• Battery: 48 V, 15 Ah (720 Wh) Safe Shield semi-integrated, UL‑2271/UL‑2849 certified; uses Samsung or LG cells
• Charger: 48 V DC, 2 A smart charger (4–6 hr full charge)
• Display: Rad custom full-color LCD; shows speed, watts, range, battery level, class mode, PAS, lighting controls; includes USB‑C port on remote
• Speed/Class: Class-switchable (ships in Class 2); Class 1=20 mph, Class 2=20 mph throttle, Class 3=28 mph pedal‐assist; top speed 28 mph

• Frame: Aluminum mid-step, 2 sizes:
  
  • Regular: 4′11″–5′8″
  • Large: 5′7″–6′4″
• Fork: SR Suntour hydraulic suspension, 80 mm travel, tapered steerer, thru-axle
• Tires: Kenda Havok 27.5 × 3.0″ mid-fat with puncture protection and tan sidewall
• Brakes: Tektro E350 hydraulic discs, dual-piston, 180 mm rotors
• Drivetrain: Shimano 1×8-speed (50 T chainring, 11–34T cassette), Shimano derailleur, 8-speed thumb shifter

• Weight: ~77.5 lb (35.2 kg) with battery; 68.5 lb without
• Payload: Max rider weight 290 lb; total payload 370 lb; rear rack supports 55 lb
• Geometry (Regular frame):
  
  • Wheelbase: 46.6″
  • Length: 74″
  • Handlebar height: 44.5″
  • Standover height: 21″

• Lighting: Auto-on front LED headlight (≈200 lumens) + rear LED taillight with brake light and integrated turn signals
• Security: Control lock via key fob (RFID) or PIN code
• Fenders: Front and full rear alloy mudguards
• Rack: Integrated rear rack rated for 55 lb
• Kickstand: Adjustable side-mounted stand

• Range: Manufacturer’s estimate 25–65 miles; real-world tests up to ~75 miles in Max PAS
• Charge Time: Approximately 4–6 hours due to 2 A charger