—— Professional Grade Cycling Hubs ——
Advanced engineering for exceptional cycling performance. The B306 hub system combines precision engineering and advanced materials for excellence-driven road cyclists.
01 / Front Hub Excellence
The B306 Front Hub fuses high-grade materials with meticulous manufacturing for outstanding performance and reliability on the road.
The AL6061 and AL7075 material combination blends durability and lightness for an unrivaled road riding experience.
02 / Rear Hub Innovation
B306 rear hub features advanced PG Ratchet and optimized bearing configuration for instant power transfer on every pedal stroke.
With P.C.D. dimensions of Φ44.0mm–Φ47.0mm, the rear hub offers an excellent bracing angle for improved wheel stiffness and efficient power transfer.
Precision-engineered alloys for maximum performance and durability
AL6061 hub body balances strength, weight and vibration damping for high-performance road cycling, with precision machined tolerances.
Used in freehubs and axles, AL7075 delivers top strength-to-weight ratio and fatigue resistance for high-load durability under power.
For wheel builders speccing a full build — every number a lacing plan needs, in one place.
| Specification | Front | Rear |
|---|---|---|
| Material | AL 6061 (Body) + AL 7075 (Axle) | AL 6061 (Body) + AL 7075 (Freehub & Axle) |
| Spoke holes | 24H (Hooked Flange) | 24H (Hooked Flange) |
| Spoke gauge | 14G (Berd Spoke compatible) | |
| Bearings | 2 × 6803 | 2 × 15267 / 6802 |
| Brake interface | Center Lock | |
| Axle × OLD | 12 × 100mm THRU | 12 × 142mm Thru |
| P.C.D. | Φ39.5mm – Φ44.0mm | Φ44.0mm – Φ47.0mm |
| Freehub | — | HG / MSR / N3W / XDR |
| Driving system | — | PG Ratchet |
| Weight | 311g ±5g/set | |
Engineered for the ultimate road ride. Every component — from advanced alloys to precision bearings — optimized for elevated cycling performance.
