Rennen cog, one of the lightest on the market with only 18g on the scale in 16T ! Only Rennen cog offer a specific single-speed tooth profile that has been designed to extend the lifespan of the teeth.
- Material: 7075-T6 aluminium
- Reverse design
- Width 5mm to avoid the Aluminium body marking
- For 1/2 - 3/32'' chain
- Standard Shimano