Prestacycle UniBlock PRO Cassette - 12-Speed Shimano For HG 12 Freehub 11-30 Silver Model=Narrow Wide Chainring Compatible with Campagnolo Ultra-Torque cranksets

Compatible with Campagnolo Ultra-Torque cranksets only

Color Silver/Gray Half Link Chain No Drivetrain Speeds 10 Defined Color Silver Links (links) 116 Weight 273 Chain Connection Type Reusable Master Link Width 5

The derailleur is designed with a resilient Overload Clutch - in the event of an impact the motor gearbox disengages giving the derailleur freedom to move and instantly returns back to its position for a seamless experience for the rider

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Prestacycle UniBlock PRO Cassette - 12-Speed Shimano For HG 12 Freehub 11-30 Silver Model=Narrow Wide Chainring Compatible with Campagnolo Ultra-Torque cranksetsPrestacycle UniBlock PRO Cassette 12 Speed Shimano For HG 12 Freehub 11 30 Silver. Prestacycle UniBlock Cassettes are a single piece unit exquisitely machined from a solid block of cold forged Chrome Molybdenum alloy steel then heat treated tumble finished and electroplated for added durability and low friction operation. The 2 largest cogs on the 11 40 and 11 42 HG11 cassettes are crafted with one piece of high quality 7075 aluminum. Single block