Rennen Design Group

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Showing 2 products:
Internal threads eliminate the need for chainring nuts Precision machined 7075-T6 aluminum, 3/16" thick so they stand up to the abuse of … read more
your price $45.00
The Smart Sprint is a first of its kind BMX specific speedometer designed and built for the BMX racer. Record and view the maximum speed while … read more
your price $90.00 + ships free
Bolt Circle Diameter (BCD) is the diameter of an imaginary circle running through the center of the chainring mounting holes. It is always defined in millimeters.
Chainring Teeth
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