The first eight cogs provide a natural and comfortable connection

the new 12-speed ULTEGRA R8150 rear derailleur is more versatile than ever thanks to a single cage length option that is compatible with 28-34T low sprockets

Ratio 11-12-13-14-15-16-17-19-22-25-28

The upper and lower oversized aluminium pulley wheels come fitted with either standard or coated CeramicSpeed Bearings

Gain that crucial edge at the finish line with CeramicSpeed UFO Racing Chain

shimano chain cn 4601 hg 10 speed SALE_INDEX The first eight cogs provideShimano Tiagra CN 4601 10 Speed Chain. Features: Not compatible with 9 speed system 10 speed compatible Super narrow HG chain for 10 speed Ampoule Type Connect Pin Specifications: Speeds: 10 Speed Links: 116