Shimano Ultegra CS-R8101 Cassette - 12-Speed, 11-30t, Silver Belt Drive Parts & Tools Xsenium cover allows RoyalGel to

Xsenium cover allows RoyalGel to move freely and dynamically in all 3 dimensions

Race worthy

UPC: 790983296964

UPC: 710845888144

AV5061 TL6940 610135

Shimano Ultegra CS-R8101 Cassette - 12-Speed, 11-30t, Silver Belt Drive Parts & Tools Xsenium cover allows RoyalGel toThe uninterrupted shifting experience of the Shimano Ultegra CS R8100 12 speed cassette range lets you climb, sprint, or cruise without stopping to think about your next gear change. Larger driving cogs maximize drivetrain efficiency and create compatibility with both Shimano 11 and 12 speed freehub bodies. Shimano HYPERGLIDE+ technology is integrated to provide seamless shifts both up and down the gear range. Refined 12 step gear combination provides