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Rennen - 4-Bolt Decimal Chain Ring (Bicycle)

Product Code: rennen-4-bolt-decimal-chain-ring-bicycle
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Rennen - 4-Bolt Decimal Chain Ring (Bicycle)

Rennen Decimal Gearing is a breakthrough in gearing technology. We have developed Special Engineered Tooth profiles that allow us to manipulate the size of a existing gearing to make it slightly harder or easier depending on your needs for the track. Changing your gearing by Fractions of a tooth is now possible.