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Crank Conversion Kit - Motorized Bicycle Black

Bicycle Bottom Brackets

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Crank Conversion Kit - Motorized Bicycle Black

Crank Conversion Kit - Motorized Bicycle Black

3 piece crank conversion kit for motorized bicycles

2 heavy duty bottom bracket BLACK CUPS:  51.54mm (2") OD
3 screws to connect the heavy duty bottom bracket cups
Bottom bracket bearings and hardware
134.5mm (5") wide spindle and screws to receive crank arms


Use with 3-piece crank sets 510100, 510101, 510102
Use with single speed bicycles: cruisers, choppers, motorized bicycles
The wide spindle moves the pedals away from the engine parts

Part #: 503406

Price: $35.00

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Money Orders:, Inc. P.O. Box 991408, Redding, CA 96099

Supplying customers with the finest quality bike parts in our niche market. Focusing on bicycle parts for lowrider bicycles, cruiser bicycles, chopper bicycles, motorized bicycles, and custom bicycles. Order by adding an item to the cart, then enter your zip code or check the country box and select your country to get a shipping quote and a total, then check out.

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