Tree Bicycle Co. reintroduced the Original Spline Drive Sprocket after lots of demand from the BMX public. The Original Spline Drive Sprocket changed the BMX market and now it's back in a big way. For starters, the Tree Original Spline Sprocket Drive is constructed from ¼" thick 7075 T6 aluminum that has been shaped and sculpted to lose weight where it could without compromising strength. Tree allows the sprocket to have 5 different crank arm bolt positions in order to help extend the life of the sprocket.
Raw or Black
Uses a heat treated steel insert that is splined for 48 spline for ¾" spindle cranks No need for the sprocket bolt!
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