Rennen 5-Bolt Decimal Threaded Chainring

Article number: 91-5135 372
Availability: In stock

Rennen Decimal Gearing is a breakthrough in gearing technology. Rennen have developed Special Engineered Tooth profiles that allow us to manipulate the size of a exisiting 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.

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