Shimano Aluminum

Full manufacturer's warranty. Note 148mm hub uses a different wider hub shell and axle compared to standard 135mm Pro 4 rear hub. Hub flanges move outboard 3mm compared to standard Pro 4 rear hub to increase complete wheel stiffness.

Full manufacturer's warranty. Note 148mm hub uses a different wider hub shell and axle compared to standard 135mm Pro 4 rear hub. Hub flanges move outboard 3mm compared to standard Pro 4 rear hub to increase complete wheel stiffness.