• 750W*2 Brushless Rear Motor

    This bike is equipped with two 750W motors.750W Brushless Motor has high performance, more power, faster acceleration, and Greater Climbing Ability.

  • 15Ah Removable Lithium-Ion Battery

    Simple design and compact size make the bicycle beautiful and generous. And, the 15Ah concealed replaceable lithium battery is installed in the bicycle tube without protruding.

  • 20 x 4 Inches Fat Tire

    CMACEWHEEL RX20-MAX has 4.0 wide tires. And it adds an extremely cut-resistant and wear-resistant material to the sidewalls of selected mountain tires.

  • 45km/h Max Speed
  • 60-100km Range At Pedal Assistant Mode
  • 45-Degree Grade Ability
  • Equipped With Multi-Color LCD and Turning Indicate Tail Ligh


ModelRX20 – MAX
FrameAluminum alloy
BrakeDisc Brake
TireCST 20 * 4.0in
Battery Capacity15AH 48V
Battery TypeLi-ion Battery
Speed Gear5-speed gear
Charging Time7 – 8 hours
Three riding modes1. Electric-only mode
2. Cycling mode (without electricity)
3. Pedal-assist mode
MileagePure Electric: 30 – 50km
PAS Mode: 60 – 100km
Motor Power750W * 2
Top Speed45km/h
Maximum Grade45°
Suitable Height175 – 190cm
Charger Rated Input Voltage100 – 240V
Charger Rated Current2A
Saddle Height84.5 – 110cm
Max load150kg
Net Weight27kg
Gross Weight36kg
CertificationCE, EN