Front Hub Engineering
The JR342 Front Hub merges aerospace materials with precision engineering for unmatched performance
Extreme Lightweight Design
At just 109g, achieve an exceptional strength-to-weight ratio through strategic use of AL6061 and AL7075 aluminum alloys—ideal for riders who thrive on climbing and sprinting.
Frictionless Rotation
Dual 6803 bearings deliver silky-smooth rotation with minimal friction, ensuring efficient power transfer and extended component life.
Universal Compatibility
With 24H, 28H, 32H spoke configurations and 100MM OLD spacing, the JR342 integrates seamlessly with modern performance frames. Features Φ9MM QR & Φ12MM Thru end caps for secure fit.
"The strategic combination of AL6061 for the hub body and AL7075 for the freehub and axle creates the perfect balance of durability and lightweight performance for demanding riders."
