PROPER Vanguard Bashguard SprocketThe Vanguard Sprocket is the latest addition to the Proper sprocket range. It is a full bashguard sprocket with 4 rotation points, it comes in 25T, 28T and in black, high polish, blood red and dark blue. The Vanguard sprocket sprocket fits half link chains and comes with a 23. 8mm bore with 22mm and 19mm adapters, meaning it will fit most cranks. We thought very carefully about the sizes, the 27T is for those who want to run a slightly bigger gear
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