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rattle-free connection to frames with a braze-on front derailleur tab
The included 4-foot cable lets you loop through a second wheel or accessory without needing to carry a separate lock
but with substantially more material underhand
so you're not shortchanged on fit just because you're starting with the Classic 3
comfortable feel
Shimano Ultegra CS-R8101 Cassette - 12-Speed | 11-34t Flat Pedals rattle-free connection to frames withWhy Is the Shimano Ultegra CS R8101 the Go To 12 Speed Cassette for Serious Road Riders? The Shimano Ultegra CS R8101 brings HYPERGLIDE+ technology to Ultegra level riders, enabling uninterrupted shifting under full pedaling load whether climbing, sprinting, or accelerating out of corners. Larger driving cogs maximize drivetrain efficiency and the cassette is compatible with both Shimano 11 speed and 12 speed freehub bodies, making it a clean upgrade
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