Shimano Ultegra CS-R8101 Cassette - 12-Speed 11-30t Silver CheckoutTitle=Ritchey WCS Toyon Stem - 80mm ergonomic hand position on the

ergonomic hand position on the tops of your bars

1 Courier Crankset - 170mm Single Speed 48t 130 BCD GXP Spindle Interface Black

15 Bolt Mount Diameter 8

great for commuters too

7 Brass Tubeless Valves - Pair 40mm Silver

Shimano Ultegra CS-R8101 Cassette - 12-Speed 11-30t Silver CheckoutTitle=Ritchey WCS Toyon Stem - 80mm ergonomic hand position on theShimano Ultegra CS R8101 Cassette 12 Speed 11 30t Silver. The 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