5DEV Titanium Centerlock Rotor Lockring

The 5DEV Titanium Centerlock Rotor Lockring is a CNC machined titanium replacement for the steel lockring that clamps a Centerlock disc rotor to the hub. It weighs 9 grams, measures 40mm across and comes with a stainless steel shim washer. Torque it to 40 Nm.

The spline is internal and the profile is slim, which matters on tight-clearance disc setups where a bulky stock lockring can foul a caliper or frame. Because of that internal spline, it takes a cassette-style lockring tool rather than an external-spline one, so check what is in your toolbox. It fits rotors up to 220mm, works with both 12mm thru-axle and quick-release hubs, and suits road, gravel, BMX and mountain bikes.

One lockring comes per order. If you are doing both wheels, you need two.