YVY C20MAX (Ridstar Q20PRO (link)) – High-Performance Dual Motor Electric Bike

The YVY C20MAX is a powerful and versatile electric bike, identical to the Ridstar Q20PRO, designed for riders who demand maximum performance (see our electric bike maintenance tips), stability, and long range. With its dual hub motor system and dual battery setup, this e-bike is built to handle both urban commuting and challenging off-road terrain with confidence.

You can switch between single-motor and dual-motor modes, allowing you to balance efficiency and power depending on your riding needs. Whether you are cruising through the city or climbing steep hills, the C20MAX delivers smooth and reliable performance.

⚡ Power and Performance

• Dual hub motors: front and rear

• Voltage / Power: 52V / 750W (peak power over 1000W)

• Maximum speed: up to 48 km/h

• Excellent climbing ability and traction

• Three riding modes for full control of performance

🔋 Dual Battery System – Extended Range

• 2 × 52V 20Ah 18650 Li-ion batteries

• Total capacity: 40Ah

• Integrated batteries with BMS protection

• Range: up to 120 km (75 miles) depending on riding mode and conditions

• Charging time: approx. 3–6 hours

🚴 Comfort and All-Terrain Capability

• Tire size: 20 × 4.0 inch fat tires

• Front suspension:
  Aluminum double-shoulder front fork with shock absorber
  Height: 460 mm
  Distance between upper and lower crown: 230 mm
  Disc brake compatible

• Frame material: Steel

• Color: Matte Black

🛑 Braking and Safety

• Dual hydraulic disc brakes (front and rear)

• Front LED headlight: MD07, 48V

• Rear running-water style taillight: MZ-04

• LCD display showing speed, battery level, distance, and riding mode

💡 Lighting System

• Front light:
  MD07 model, 48V, black, waterproof cable
  Cable length: 1200 mm

• Rear light:
  MZ-04 flowing taillight design
  Cable length: 1300 mm

🛠 Technical Specifications

🚦 Riding Modes

1. Electric Mode
   Select PAS level 1–5 and use the throttle only, without pedaling.

2. Assist Mode
   Select PAS level 1–5 and pedal. The motor provides automatic assistance.

3. Manual Mode
   Ride using pedals only, with the electric system turned off.

⚠️ Safety Instructions

1. Beginners, elderly, or physically weak riders should not use high-speed mode.

2. Do not accelerate aggressively when riding downhill.

3. Do not touch the motor or brake components immediately after riding, as they may be hot.

4. Always check that all locking and folding mechanisms are securely fixed before riding.

The YVY C20MAX / Ridstar Q20PRO is built for riders who want serious power, long range, and bold design.
With dual motors, dual batteries, fat tires, and a rugged steel frame, this electric bike stands out as one of the most aggressive and capable models in its class.

A perfect choice for ridstar.eu customers looking for a true dual-motor electric fat bike that delivers both performance and reliability.