Outdoor Retailer & America's #1 British Cycling Distributor | FREE SHIPPING ON ORDERS OVER $50 | QUESTIONS? CALL US AT 888-70EXPLORE

Park Chainring Diameter Gauge

Park Tool

Is our price too high?

Is Our Price Too High?

We've found that people really like to buy from us, and we'd love to make you a believer, too.

Fields with * are required.

The CDG-2 easily and accurately measures bolt circle diameter (BCD) in millimeters for a wide variety of four- and five-bolt chainring patterns. Made of anodized aluminum and permanently laser engraved, the tool centers itself in chainring holes, chainring bolts, or crank arm holes. The CDG-2 also includes a center-to-center distance scale and a handy reference chart listing additional mounting pattern measurements.

  • The CDG-2 easily and accurately measures bolt circle diameter (BCD) in millimeters for a wide variety of four- and five-bolt chainring patterns
  • Made of anodized aluminum and permanently laser engraved, the tool centers itself in chainring holes, chainring bolts, or crank arm holes

Type: Tool




Related Items