Shimano Ultegra Cassette Sprocket 12Spd CS-R8101 11-34T Pedals The internally-geared drive train even

The internally-geared drive train even uses a dynamo hub to power your lights

rough miles in the saddle

DURA-ACE R9100 delivers unparalleled performance

It provides total corrosion protection and unparalleled performance in dry

Gravel and singletrack performance

Shimano Ultegra Cassette Sprocket 12Spd CS-R8101 11-34T Pedals The internally-geared drive train evenDescription Lightweight 12 speed HG+ cassette with rigid alloy sprocket carrier for reduced weight and better shifting performance, even under the most demanding gear changes Hyperglide+ sprockets have been designed to reduce weight with improve teeth shaping providing accurate shifting and reduced wear Wide gear range to meet the demands of all types of rider For use with 12 speed chains Product Type Cassettes Speed 12 Speed Discipline Road