Park Tool - DCA-1 - Digital Caliper Accessory S3-Cat-Components&Parts-Shifters-Road/Gravel/CX/Urban-Mechanical improving traction

improving traction

Compatible with JetStream Bars (Through) and TrimHD Bars (with TrimHD Adapter sold separately)

1/4 turn twist lock

Compatibility: SS-DJ Rear Hub

at the right width

Park Tool - DCA-1 - Digital Caliper Accessory S3-Cat-Components&Parts-Shifters-Road/Gravel/CX/Urban-Mechanical improving tractionPARK TOOL DCA 1 DIGITAL CALIPER ACCESSORY 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. The conical end points of the DCA 1 can be used to measure center to