SHIMANO LOCK RING & WASHER XT~15/20MMShimano Lock Ring for Brake Disc Front Hub Centerlock external serrated Y26L98030 Lockring made of anodized aluminium for mounting Centerlock brake discs. External type. Compatibility: brake rotor: RT EM900, RT EM800, SM RT99, SM RT81, SM RT70, SM RT64 front wheel: WH M788, WH M785, WH MT68, WH MT66, WH MT65, WH MT55 front hub: HB M788, HB M776, HB M678, HB M640

3-O-ethyl asscorbic acid

Bar: 5 Bar

Shimano ULTEGRA CS R8000 Cassette Sprocket and CN HG701

the new Shimano GR-500's have everything you need at a great price

Cantilever brake

lightweight and compact

7900-level PTFE packaging does not note DURA-ACE on packaging

1-pair package

but grips safely and reliably on gravel roads and smoother

Step Area : Single sided

Designed for the toughest downhill mountain bike runs

45-degree upsweep