To remove the cassette, you must loosen the lockring. This requires a special splined tool, which is specific to your brand of cassette. Shimano and SRAM share the same lockring tool across both their HG and XD / XDR cassettes. Campagnolo cassettes use a different lockring because they have...
Centrelock rotors are typically torqued to around 40Nm using a cassette lockring tool. To tighten a six-bolt disc rotor, it’s best to work in a star-shaped pattern. Start by tightening one bolt slightly, then move to the one opposite and tighten evenly. Next, evenly tighten the bolt ...