Shimano used all the weightsaving tricks in the book to make this the best MTB cassette money can buy. Hyperglide shift gates for smooth, accurate shifts. 3 piece, 5 arm aluminum carrier further shaves grams. Fits all Shimano and Shimanocompatible 89sp hubs. 4 largest cogs are titanium. 6 largest cogs are mounted to 3 separate aluminum carriers. Includes alloy lockring. Speeds 9. Cassette Cogs 11,12,14,16,18,21,24,28,32. Drivetrain Spacing ShimanoSRAM 9.
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