Sram: A compact confidence builder Engineered to maintain consistent chain gap across all seven gears, X-HORIZON™ delivers faster shifting and reduced shift force while eliminating vertical movement and ghost shifting. And with the Type-3 ROLLER BEARING CLUTCH™, you get the very best in chain management. It’s quiet, consistent and long-lasting — a purpose-built workhorse for the parks and tracks.Short or medium cage length fits your chainstay.Built high and tight to steer clear of the trail.CAGE LOCK™ makes wheel changes simple and quick.Pair with X01 DH™ 7-speed shifter for full X-ACTUATION™ technology. SPECIFICATIONSPEEDS: 7-speedMATERIAL: Aluminum outer cageWEIGHT: 257g (short cage)COLORS: Red, BlackCOMPATIBILITY: 1x7 X-ACTUATION™BEARINGS: Sealed cartridge bearingsCAGE SIZES: Medium, ShortPIVOT DESIGN: Horizontal Parallelogram designPULLEYS: 12-tooth X-SYNC™ pulley wheelsTECHNOLOGY HIGHLIGHT(S): X-ACTUATION™, X-HORIZON™, X-SYNC™, ROLLER BEARING CLUTCH™, CAGE LOCK™HARDWARE: Stainless steel