best live chat

Rennen - 4-Bolt Decimal Chain Ring (Bicycle)

Product Code: rennen-4-bolt-decimal-chain-ring-bicycle
Add $85.00 to your order for FREE US Shipping
Add $599.00 worth of items for FREE International Shipping
$39.95
Get up to 10% CASH BACK instantly + FAST FREE SHIPPING on eligible items - Click for details

  • Description
  • Reviews
  • Customer Photos

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.