Box One I-Spec II R Shifter Adapter wheel Not compatible with carbon fiber

Not compatible with carbon fiber steerer tube forks

these super-stiff 20mm axles are hollowed out for weight savings and feature two CNC Machined 7075-T6 aluminum nuts to ensure proper fit and dropout overlap

5 to 1-1/8 inch tapered 7000 series aluminum steerer tube and stiffer 20mm through-axle cold-forged dropouts

each offering a salt spray life of 45 hours

Each Quantum driver is a complete

Box One I-Spec II R Shifter Adapter wheel Not compatible with carbon fiberThe Box Two I Spec II adapter allows any Box shifter to mount directly to a I Spec II compatible Shimano brake. This simplification makes any cockpit clean and tidy by integrating 2 clamps into one.