—— Professional Grade Cycling Hubs ——
Aerospace-grade engineering for riders wanting ultralight performance. Precision straight-pull road disc hubs built for steel spokes and maximum efficiency.
01 / Front Hub Engineering
The SR261 Front Hub fuses aerospace materials with precision manufacturing for top-tier straight-pull performance and reliability.
Hub body in AL6061 and axle in AL7075 balance durability and lightweight performance for demanding riders.
02 / Rear Hub Performance
Advanced PG Ratchet system and optimized bearing configuration for instant power transfer on every pedal stroke.
With P.C.D. dimensions of Φ35.4mm–Φ45.5mm, the rear hub’s bracing angle boosts wheel stiffness and power transfer for maximum forward momentum.
Precision-engineered alloys for maximum performance and durability
AL6061 hub bodies balance strength, weight and damping for smooth, controlled rides with precision machined tolerances.
AL7075 freehubs and axles offer top strength-to-weight ratio and fatigue resistance for high-load reliability 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 system | Straight Pull (Steel Spoke) | |
| Spoke holes | 24H | 24H |
| Spoke gauge | 14G | |
| Bearings | 2 × 6802 | 2 × 15267 / 6802 |
| Brake interface | Center Lock | |
| OLD & End Caps | 100mm ( Φ12 THRU) | 142mm (Φ12 Thru) |
| P.C.D. | Φ34.4mm – Φ34.4mm | Φ35.4mm – Φ45.5mm |
| Freebody system | — | PG Ratchet (36T or 45T) |
| Weight | 269g ± 5g / set | |
The pinnacle of cycling engineering. Every component — from aerospace alloys to precision bearings — crafted for an elevated road ride.
