
Box One Pro 108mm Brake Caliper
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About the Box One Pro 108mm Brake Caliper
BOX ONE PRO 108MM BRAKE CALIPER
Product Overview
The Box One Pro 108mm Brake Caliper is a long-reach V-brake designed for BMX and other bikes using linear-pull brake systems. Cold-forged and CNC-machined from 6061-T6 aluminum with sealed bearing pivots, this brake provides powerful, precise rim braking with 35mm of vertical pad adjustment range. The 108mm arm length delivers strong mechanical advantage for reliable stopping power.
Key Features
Cold-forged construction - Cold-forging process produces maximum strength and stiffness while minimizing weight compared to cast or machined-only designs
6061-T6 aluminum - Heat-treated aluminum alloy provides durability and corrosion resistance
Sealed bearing pivots - Precision sealed bearings at pivot points ensure smooth, consistent brake arm movement while resisting dirt and moisture
35mm vertical pad adjustment - Extensive adjustment range accommodates different rim widths and allows precise pad positioning
108mm arm length - Long-reach design provides strong mechanical advantage for powerful braking and accommodates wider tires
Premium hardware - Titanium and stainless steel fasteners resist corrosion and reduce weight
Flexible cable noodle - Allows optimized cable routing angle for smooth cable action
Streamlined cable anchor - Simplified cable fixing point makes cable installation and adjustment easier
Technical Specifications
Brake type: V-brake (linear-pull)
Arm length: 108mm (long-reach)
Material: 6061-T6 aluminum, cold-forged and CNC-machined
Pivot bearings: Sealed precision bearings
Pad adjustment range: 35mm vertical
Hardware: Titanium and stainless steel
Weight: 198g (7 oz) per brake
Brake size: Pro (108mm arm)
Lever compatibility: Linear-pull brake levers (V-brake levers)
Compatibility and Ideal Use Cases
This brake fits frames and forks with V-brake/linear-pull brake bosses-two threaded posts spaced vertically on each side of the wheel. The 108mm arm length requires linear-pull (V-brake) levers, not cantilever or road brake levers, as the cable pull ratio differs. Not compatible with disc brake mounts or cantilever brake posts. Verify your frame has V-brake bosses and you have V-brake levers before ordering.