Sram: POWERGLIDE™ 1130The PG-1130 cassette is light, durable and equipped with SRAM’s super wide 11-42t gear range that’s a perfect fit for any ride. Personalize your wide range gearing with one of eight available X-SYNC™ chainrings.THINGS TO REMEMBER• Heat-treated steel cogs with aluminium spider• Compatible with all SRAM 11-speed chains• PG-1130 11-42t cassette fits 10- and 11-speed driver bodies. (1.85mm spacer is required for 11-speed driver.)• 538gFEATURES AND BENEFITS• Super wide gear range—a perfect fit for any ride• Optimized gear steps across entire range• Compatible with non-XD™ driver body• Fully compatible with all SRAM 1x™ drivetrains• ISO 4210 compliant.SPECIFICATIONSSpeed (CS):  11sCog finish (Cassette):  BlackCog sizes:  11-42t: 11,13,15,17,19,22,25,28,32,36,42