Campagnolo Centerlock Rotor Lockring Description: The Campagnolo Centerlock Rotor Lockring attaches Campagnolo 2-piece centerlock disc brake rotors onto centerlock hubs. The External Lockrings are compatible with 12mm and 15mm thru axles as well as quick release-style hub axles, and the included stainless steel wave washer adds just a touch of tension to keep the threads securely engaged, resulting in a connection that will stay tight and require fewer adjustments. Features: Aluminum lockring with external spline to secure Campagnolo 2-piece centerlock rotors to the hub/wheel Stainless steel wave washer applies safe tension to the threads to prevent lockring from loosening Requires lockring tool for install Will clear any Quick release or thru axle hub axles Sold individually, so if both wheels on a bicycle need a lockring, two (2) of these will need to be ordered Specifications: Compatibility: Campagnolo Centerlock Rotors Material: Aluminum (w/ Stainless Steel Wave Washer) Weight: - Color: Black