This SRAM PG-1070 MTB Cassette has 10 cogs with their Powerglide tooth shaping to ensure that you get positive shifts in any situation, even under load. With 10-speed for mountain bikes originating in the XX group, it's no surprise that we'd see it at the X9 level eventually. And while this cassette may not be as flashy or nearly as light as the X-Dome XX cassette, it shifts like its big brother but saves you a bundle.Where the high end cassette is milled from one piece of steel, this PG-1070 cassette also features steel cogs, but they're all made separately. The largest three cogs are riveted to an aluminum spider to save a few grams, and the rest are simply stacked together along with the appropriate aluminum spacers to create the cassette. The lockring that holds it all together is aluminum and has a laser etched logo with the proper torque spec for installation.The SRAM 10-Speed PG-1070 MTB Cassette is available in two ratios -- 11/36 and 12/36. It requires the use of a 10-speed chain. The 11/36 includes: 11,12,14,16,18,21,24,28,32,36The 12/36 includes: 12,13,15,17,19,22,25,28,32,36
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