VIVI Bike JAK-7 Mechanical Disc Brake Calipers

A quick, reassuring bite at speed gives you the quiet confidence of the VIVI Bike JAK-7 Mechanical Disc Brake Calipers — engineered to deliver steady, fade-resistant control when city traffic, loaded commutes, or loose trail sections demand precise stopping.

Compact dual-piston action balances braking force with reassuring modulation, so riders of heavier e-bikes or cargo rigs feel predictable response without grabby behavior. The machined aluminum body keeps weight down while resisting everyday corrosion.

Maintenance is simple: accessible pads and straightforward cable setup mean less shop time and more miles. Fits common mechanical levers and standard rotor sizes, making upgrades or replacements painless for mechanics and DIYers alike.

• Dual-piston mechanical caliper for even stopping power.
• Sturdy aluminum construction for low weight and durability.
• Tool-friendly pad access for quick roadside service.
• Smooth modulation suited to commuting, cargo, and light trail riding.
• Compatible with standard mechanical levers and rotor mounts.
• Tunable cable actuation for precise lever feel.

Reliable, serviceable, and quietly effective — JAK-7 brings practical braking performance to everyday e-bike use.