Brake Front Tektro HD-E3940
Brake Front Tektro HD-E3940

Brake Front Tektro HD-E3940

VAM001147

Regular price$153.99
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Tektro HD-E3940 e-Bike Hydraulic Front Brake | 4-Piston Power & Integrated Cut-Off

Stop on a dime, every time. Upgrade your e-bike’s stopping power with the Tektro HD-E3940, a heavy-duty hydraulic braking system engineered specifically for high-speed electric bikes like the Vamoose Toro and Matador.

Combining massive quad-piston clamping force with an integrated electronic safety switch, this front brake kit offers the ultimate blend of performance and security.

Key Features:

  • Superior Quad-Piston Caliper: Features a new 4-piston design that provides significantly more surface area and clamping force than standard 2-piston brakes—essential for heavy e-bikes and steep descents.
  • Integrated Power Cut-Off: Built-in reed switch sensor instantly cuts motor power the moment you engage the lever, ensuring shorter stopping distances and preventing motor "push."
  • E-Bike Optimized Lever: Ergonomic 3-finger aluminum lever with reach adjustment, designed for comfortable, high-leverage braking even with gloves on.
  • Maximum Heat Dissipation: Designed to pair perfectly with oversized 203mm rotors (2.3mm thickness) to eliminate brake fade during prolonged use.
  • Easy Maintenance: Uses non-corrosive mineral oil and features a simplified bleeding design for long-term reliability.

Technical Specifications:

  • System: Hydraulic Disc Brake (Front)
  • Piston Type: 4-Piston (Quad)
  • Adapter Included: A7 Post-Mount Adapter (Optimized for 203mm Rotors)
  • Rotor Compatibility: 203mm (Model 203-54)
  • Fluid Type: Mineral Oil
  • Application: e-MTB, Fat Tire e-Bikes, Cargo e-Bikes

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what our customers say

★★★★★

Best on the market, I'm a happy owner of one.

Jeremy Price
British Columbia
★★★★★

Love my Vamoose - almost 1000Km with zero issues. These bikes are freaking awesome and the customer support is amazing.

Travis Kenny
Alberta
★★★★★

We have the Mammoth 500 and the 750. Best bikes ever!

Mike Lovin
Alberta
★★★★★

It truly is a neat beast! I'm always surprised at the slopes I can tackle with the dual motors. Can't wait for snow to fall.

Tyler Mackenzie
British Columbia
★★★★★

I absolutely LOVE my Vamoose Cruiser!!!

Kathy Lea
Ontario

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