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Chain Sprocket fits on the shaft of your Wonder Junior Hand Grain Mill so you can hook it up to a bike. The chains of most modern bicycles will fit the sprocket, and mill speed must be no more than 300 RPM. User is solely responsible for safe design and operation of any drive system, including full shielding, which is essential for safety.
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Pleasant Hill Grain, Wow fast delivery, This sprocket drive really speeds the milling. Glad they offer it. Heavy duty in nature and came with tool to help remove the handle, if needed.Was this review helpful to you?