Aero spokes (Sapim CX-Ray)
Its unique strength and flexibility make the CX-Ray suitable for hard riding wheelsets. Even downhillers use them, recognizing their strength and flexibility. That is why Irwin equips CX-Ray as standard spoke on our wheelsets.
- More long lasting than any other spokes on the market. Extremely high fatigue test results.
- Special alloy treatment and sophisticated production.
- The best aerodynamic spoke available.
- Produced from high-tensile, fatigue-resistant 18/8 stainless steel conforming to the Sapim quality standard specifications.
BUTTED SPOKES (SAPIM RACE)
Technological advances use cold forging to ‘stretch’ the spoke, retaining the linear molecular structure of the material, thereby increasing the spoke strength at the middle by at least 48%.
As an added bonus, the Race spoke’s thinner mid-section than non butted spokes provide better shock absorption.
The strength, with its extra material in the bend, makes it ideally suited for our heavy duty applications.