Denture couronne | 53 |
Matière couronne | Acier, Aluminium |
Pas couronne | 420 |
Composed of two materials, it combines lightness and resistance.
The center is in aluminum for optimum lightness and the exterior is in ultra-resistant steel
- Steel teeth for greater longevity
- More lightness than a 100% steel chainring (less rotating mass)
- Lifespan longer than a 100% aluminum chainring
- Diameter 108 in 6 holes