Made of 6061 Aluminum, the SD CNC 6061 4Hole Chainring with a 104BCD is designed for BMX racing. It gives optimized power transmission with plenty rigidity for fast accelaration. It is designed to be mounted on a 4-bolt crankset.
- 6061-T6 aluminum
- 4 bolts mount BCD diameter 104mm
- Weight: 138g (50T)