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This is the Shimano Ultegra CS-8000 11-Speed Cassette. Using Hyperglide sprockets with revised tooth profiles, the CS-8000 11-speed cassette features reduced wear and lightning-quick shifts
Also available for in store purchase
2028 S Coast Hwy, Oceanside, CA 92054
Even under the most demanding gear changes you can expect improved shifting thanks to a rigid aluminum carrier to keep the cogs in check. The available ratio combinations work extremely well with standard, compact or triple cranksets.