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.

KEY FEATURES

• 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