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Product Description
This is the pinion sprocket for the belt drive in the Autohelm 4000 and ST4000 black MK1 wheel pilot. Autohelm part N014
3D printed in 60% stainless steel and 40% bronze to never corrode or break. This part is 100% compatible with the original and dramatically stronger. Price is for a single sprocket.
Early versions of the Autohelm 4000 used a plastic pinion sprocket, while later versions used a metal version. The plastic version is dimensionally equivalent and can be substituted with this metal sprocket.