Shimano CS-R9200 12 Speed 11-34T Cassette Tools Supersonic Ergo

Supersonic Ergo

Features low-profile BOA® Fit System featuring Dial Li2 with rubber grip

together with the Superflow cut-out that relieves pressure on the perineal area

Fork-RockShox Zeb Ultimate

Gutter Seal Technology drastically improves sealing against the elements while reducing seal drag

Shimano CS-R9200 12 Speed 11-34T Cassette Tools Supersonic ErgoEven during maximal efforts up a climb or nearing the finish line, riders no longer need to back off to perform a shift. In any gear, DURA ACE R9200 drivetrains maximize efficiency thanks to larger cogs and retain compatibility with existing 11 speed freehub bodies. All this while increasing to 12 gears and without increasing weight, DURA ACE CS R9200 cassettes are the new paradigm in road shifting.