SRAM

 Updated design for smoother and faster shifting More gradual gear progression between cogs - at least five one-tooth jumps - while still offering a wider range Designed to work with...

 Updated design for smoother and faster shifting More gradual gear progression between cogs - at least five one-tooth jumps - while still offering a wider range Designed to work with an XDR driver body One-piece machined steel X-Dome design for weight savings 10-28t 12s 10,11,12,13,14,15,16,17,19,21,24,28 Silver/Grey XG-1290UPC/EAN/GTIN: 710845822742

 Eagle technology allows an expanded, optimum, 500-percent gear range - a 20 percent increase over our other 1x drivetrains All new shifting features create a smoother, quieter system with...

 Eagle technology allows an expanded, optimum, 500-percent gear range - a 20 percent increase over our other 1x drivetrains All new shifting features create a smoother, quieter system with enhanced inboard and outboard shift performance XD Driver Body compatible 10-50t 12s 10,12,14,16,18,21,24,28,32,36,42,50 Black/Gold 300gUPC/EAN/GTIN: 710845788314