Disc brake rotors should be regularly checked for wear to ensure safety and performance. The DCA-1 installs onto most digital, dial, or vernier calipers (including the Park Tool DC-1) and features protruding contact points that allow measurement of the center of the braking surface, bypassing the unworn edge to ensure an accurate measurement.
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Park Tool, DCA-1, Digital Caliper Accessory
Product Details
The conical end points of the DCA-1 can be used to measure center-to-center distances of bolt holes for calculating bolt circle diameter (BCD) of chainrings and cranks.
DCA-1 FEATURES
Compatible with most standard vernier, dial, and digital caliper designs including the Park Tool DC-1