Presentation packaging, lockring / mounting screw for Center Lock brake discs, the low profile of only 2.5 mm ensures maximum compatibility with different types of rear forks and prevents the lockring from rubbing against the frame, aluminum, light construction, approx. 7 g The CONTEC Lock-A-Ring SL lockring is suitable for Center Lock brake discs and is made of aluminum. It can be mounted and removed with a Hollowtech wrench (external). The Lock-A-Ring SL is compatible with 12, 15 and 20 mm thru-axles. The low profile of only 2.5 mm guarantees maximum compatibility with different rear triangles and prevents the lockring from rubbing against the frame. At the same time, the lockring is particularly lightweight at only approx. 7 g. Main color black Application area Gravel, MTB, Road, trekking, triathlon Mounting rear, front Type/kind Accessories Brake type Disc brake Variant hydraulic, mechanical