Prestacycle UniBlock PRO Cassette - 12-Speed Shimano For HG 12 Freehub 11-34 Silver CheckoutSpec= Focus Olive/Core Black/Orbit Green The 2-piece block blends strength

The 2-piece block blends strength of steel with light weight of alloy

Color Black Lower Stack Height 12 Bearing Type Cartridge Crown Race 40 Weight 65 S

It provides fast charge times and uses a small connector

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Prestacycle UniBlock PRO Cassette - 12-Speed Shimano For HG 12 Freehub 11-34 Silver CheckoutSpec= Focus Olive/Core Black/Orbit Green The 2-piece block blends strengthPrestacycle UniBlock PRO Cassette 12 Speed Shimano For HG 12 Freehub 11 34 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