Pedros Pro Cassette Lockring with pin

A fully machined, heat-treated alloy-steel socket with deep splines, quick-spin knurling and both 5mm and removable magnetic 12mm guide pins.

The profile is 12 splines with a 23.5mm outside diameter. Drives are 3/8-inch square and 24mm external. Compatibility depends on the lockring and axle clearance, including suitable HG cassette and disc-lockring applications.