Shimano Ultegra CS-R8101 Cassette - 12-Speed 11-34t Silver CheckoutTitle=Garmin fenix 8 AMOLED 43mm Watch 0Color BlackWeight 135Defined Color BlackStack

0Color BlackWeight 135Defined Color BlackStack Height 35

Flat hem provides optimum fit and comfort

Color Black Ring Position/Type Chain Retaining Single Ring Tooth Count 40 Drivetrain Speeds 9 Drivetrain Speeds 10 Drivetrain Speeds 11 Drivetrain Speeds 12 Chainring BCD 110 Shimano Asymmetric Material Aluminum Defined Color Black

}SRAM Crank Arm Boot - XX Bosch Pair

} New smaller package for reduced shipping costs

Shimano Ultegra CS-R8101 Cassette - 12-Speed 11-34t Silver CheckoutTitle=Garmin fenix 8 AMOLED 43mm Watch 0Color BlackWeight 135Defined Color BlackStackThe 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