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
Weight, 25t – 70g, 28t – 90g
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