DYISLAND ATM4 Four-Piston Electric Bicycle Brake Kit - 【 2026 NEW 】

Self-Adjusting Open Hydraulic SystemAutomatically restores the ideal bite point as brake pads wear—no manual adjustments needed. Ergonomic 3-Finger Lever with Tool-Free Reach125mm long lever fits most hand sizes. Tool-free dial allows quick reach adjustment for comfort and control.Bite point can be fine-tuned for aggressive or smooth braking. Thick Sintered Metal Pads (5.5mm)Dimensions: 38.2 × 37 × 5.5mm (custom) vs. 26 × 15 × 1.9mm (standard) Heat-resistant, fade-free, and durable. Larger contact area boosts stopping power for long descents and off-road riding. Powerful 4-Piston Calipers (Length: 74mm)Strong, even braking force with excellent heat dissipation. Handles high-speed and long downhill scenarios effortlessly. Durable & E-Bike CompatibleCNC-forged aluminum construction. Split design supports internal cable routing.Includes detachable magnetic cut-off sensor (2-pin waterproof) to safely cut motor power during braking.*Check connector compatibility before installatio