SRAM RED XG-1290 Cassette - 12-Speed 10-28t For XDR Driver Body Silver E1 MFPN=AC20RISKT 5-55mm Deluxe/Super Deluxe A1-B2 (2017+)

5-55mm Deluxe/Super Deluxe A1-B2 (2017+) Black

The Atlas 35 stem was designed to reduce overall system weight while retaining the proven stiffness and performance the Atlas line is known for

CNC machined aluminum side plates forged Center-Pivot CrV+ anti-corrosion bits

0mm 254mm J-bend Black Box of 100

Optimized for Shimano compatible 9-speed road drivetrains R9 front derailleurs feature metal construction and rapid shifting response

SRAM RED XG-1290 Cassette - 12-Speed 10-28t For XDR Driver Body Silver E1 MFPN=AC20RISKT 5-55mm Deluxe/Super Deluxe A1-B2 (2017+)Designed for smooth and fast shifting Gradual gear progression between cogs at least five one tooth jumps on 10 28T, 10 30T and 10 33T cassettes while still offering a wider range 10 tooth start helps provide a wider gearing range Designed to work with an XDR driver body One piece machined steel X DOME design for weight savings SRAM Model ID: CS XG 1290 E1 TECH SPECS Finish Silver Speed 12 Cog Details 101112131415161719212428 Cassette Spider Mat.