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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.
Ships within 48 hours · Estimated delivery Jun 20 - Jun 25
US$40
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