Super wide gear range is a perfect fit for any ride Optimized gear steps across entire range for smooth shifts every time Fully compatible with all SRAM 1x drivetrains Compatible with non-XD driver bodies Fits standard 10-speed splined cassette body 11-42t 11sp 11,13,15,17,19,22,25,28,32,36,42 Black 538gUPC/EAN/GTIN: 710845782961