The original BSD sprocket, now in it's 20th year of production, the amount of teeth may have changed over the years but the classic tri-spoke look hasn't.
- Fully CNC’d dual thickness sprocket
- Super tough 7075-T6 construction
- 8mm thick at the edges for strength
- Tapers to 6mm at the center to save weight
- Centre hole 24mm, supplied with both 19mm and 22mm top hat washers to fit all cranks