BUCKLOS HD-E735 4-Piston Hydraulic E-Bike Disc Brake Set

The BUCKLOS HD-E735 Hydraulic Disc Brake Set is a high-performance braking system designed specifically for electric bikes, mountain bikes and electric scooters. Featuring powerful 4-piston hydraulic calipers and integrated motor cut-off functionality, it delivers exceptional braking performance, improved control and increased rider confidence across a variety of riding conditions.

Designed for both replacement and upgrade applications, the HD-E735 combines reliable stopping power with smooth hydraulic modulation for everyday commuting and demanding off-road riding.

Dimensions

• Front hose length: 1150 mm (45.3 in)
• Rear hose length: 1950 mm (76.8 in)
• Brake type: Hydraulic disc brake
• Caliper design: 4-piston hydraulic
• Model: HD-E735

Performance

The HD-E735 is equipped with a 4-piston hydraulic braking system that provides increased clamping force compared to conventional 2-piston designs. This results in stronger braking performance, improved heat management and more consistent stopping power during prolonged descents or heavy use.

Hydraulic actuation delivers smooth lever feel and precise braking modulation, allowing riders to maintain greater control across urban streets, trails and varied terrain.

The integrated motor cut-off function automatically interrupts motor power when the brake lever is engaged, enhancing braking response and improving overall riding safety on compatible electric bikes.

Safety and Features

Designed for high-performance e-bike applications, the HD-E735 combines powerful hydraulic braking with advanced safety features for confident riding.

Key features include:

• 4-piston hydraulic calipers for increased braking force
• Integrated motor cut-off (power-off) brake function for compatible e-bikes
• Smooth hydraulic lever operation for precise braking control
• Strong and consistent braking performance in wet and dry conditions
• Suitable for electric bikes, mountain bikes and electric scooters
• Durable construction for long-term reliability

The longer rear brake hose accommodates a wide range of bicycle frame sizes, making the system suitable for many e-bike and MTB configurations.