Zipp 808 Firecrest Tubular V3 11-Speed Rear Wheel 11 speed compatible Built with 77/177 hubset Firecrest rim technology affords the rider more speed, more stability, and more strength. This technology offers stable, predictable handling, and the wider rim increases lateral stiffness while offering greater vertical compliance 808 Firecrest Tubular total wheelset weight is 1700 grams XD driver body compatibleEach wheel includes quick-release skewer, valve core extender, wrench for extender, and Zipp rim tape (clincher only)