Description
Over the years, Tree Bicycle Co. have been known for their very detailed and original designs. What you probably didn’t know is that they were the ones that created the Spline Drive sprocket and had they patented the idea, they probably would have made a killing due to how popular it is. Here’s a look at their 4130 HT Sprocket, which is made of, 4130 chromoly and is heat-treated. The spline drive insert is press fit into the sprocket after CNC machining. Clean and simple.
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