Shimano Ultegra CS-HG800 11-Speed Cassette 11-34T Silver Compatio_Enriched The 40-Series is the workhorse

The 40-Series is the workhorse of Cane Creek's headset line-up

4 adjustable pins height on each platform

comfort and freedom of movement – a women’s specific shape for optimal soft tissue pressure relief and a flat rear for freedom of movement

R9100 and Ultegra 6870/6770 equipped bicycles

Shimano Ultegra CS-HG800 11-Speed Cassette 11-34T Silver Compatio_Enriched The 40-Series is the workhorseSHIMANO 11 Speed HG EV 11 34T Road Cassette Sprocket Compatible with GS cage rear derailleurs, the HG800 11 cassette offers low climbing gears perfect for mixed surface riding. It is compatible with both 10 and 11 speed freehubs. Hub body designed to fit a variety of bikes from MTB to road bikes * Spacer required to fit hub body to road bikes