Tektro HD-E3940 E-bike 4-Piston Hydraulic Brake Electric Power

Description:
The Tektro HD-E3940 is a powerful 4-piston hydraulic disc brake designed for e-bikes, trail bikes, and performance mountain bikes requiring reliable and consistent stopping power. Built for modern electric-assisted systems, it offers exceptional braking control, smooth modulation, and superior heat dissipation for long descents and heavy loads.

Key Features:

• Model: Tektro HD-E3940

• Type: Hydraulic disc brake (4-piston caliper)

• Application: E-Bikes, MTB, Trail, and Enduro

• Levers: Ergonomic design with integrated reach adjustment for customized feel

• Caliper: 4-piston forged aluminum body for strong and stable braking

• Fluid: Mineral oil (non-corrosive and easy to maintain)

• Rotor Compatibility: 2.3mm Thickness 6-bolt or Centerlock (rotor not included – compatible with Tektro/TRP rotors)

• Mount Type: Post mount

• E-Bike Ready: Built-in motor cut-off sensor for e-bike systems

• Hose Length: Front approx. 900mm / Rear approx. 1850mm (may vary)

• Pre-bled and ready to install

Highlights:

• Consistent braking performance in all conditions

• Ideal upgrade for heavy-duty or electric bikes

• Durable, easy to maintain, and compatible with most modern e-bike systems

Package Includes:

• 1x Tektro HD-E3940 Front Brake (pre-bled)

• 1x Tektro HD-E3940 Rear Brake (pre-bled)

• Mounting bolts and hardware
  (Rotor sold separately)