Shimano Ultegra R8101 12 Speed Cassette - Silver Clamp Diameter_25.4mm The GXP system captures the

The GXP system captures the left side bearing between the spindle and the left crankarm while allowing the drive-side bearing to float axially on the spindle

Exact Actuation™ for fast and accurate shifts using SRAM's 1:1® actuation ratio (shifter cable travel : derailleur movement)

so it will withstand the demands of even the most rigorous and lengthy commutes – all while caring better for the environment with partially recycled materials

Shift cables routed under the bar tape using Polymer coated inner wires make for a smooth shift action

010 - SOFT

Shimano Ultegra R8101 12 Speed Cassette - Silver Clamp Diameter_25.4mm The GXP system captures theShimano Ultegra R8101 12 Speed Cassette Silver Shimanos Ultegra R8101 12 Speed Cassette provides amazing shifting under pressure, with the Hyperglide+ design moving the chain between ratios flawlessly whenever called upon. By offering 12 sprockets, Shimano has been able to reduce the jumps between gears so that it is easier to stay in the cadence sweet spot for greater efficiency and less fatigue. The combination of steel sprockets and an alloy