Prestacycle UniBlock PRO Cassette - 11-Speed HG 12 Interface HG 12/11/10 Freehubs 11-28t Silver Color-Black/Tan Superior chain management with MTB-inspired

Superior chain management with MTB-inspired spring clutch

Adaptable to the TerrainThe new flip chip feature lets you adjust headtube and seattube angles

Carbon crank arms and aluminum 50t X-Sync aero chainring results in a lighter weight stiffer more durable crankset

Compatible with Racktime 2

The FR 571 is built for aggressive gravity riding where strength durability and precision handling are critical

Prestacycle UniBlock PRO Cassette - 11-Speed HG 12 Interface HG 12/11/10 Freehubs 11-28t Silver Color-Black/Tan Superior chain management with MTB-inspiredPrestacycle UniBlock PRO Cassettes are machined from a single solid block of cold forged Chrome Molybdenum alloy steel then heat treated tumble finished and electroplated for added durability low friction operation and longer service life. The UniBlock PRO cassettes feature ARC shifting tooth profile technology that provides the fastest smoothest possible shifting to all systems while minimizing the impact to power delivery. Single block design offers