SRAM Red XG 1290 12-Speed Cassette XDR E1

The Sram Red XG-1290 E1 cassette is a 12-speed steel cassette with a XDR fitting. It is suitable if you want a lightweight drivetrain and have a wheel with a XDR freehub body.

• Sprockets machined from a single block of steel, with a lightweight X-DOME design
• Weighs 180 g in the 10-28 version
• Starts at 10 teeth, useful for high gears when riding fast
• XDR fitting only: does not fit XD freehub bodies, so check your wheel
• Choose from 10-28, 10-30, 10-33 and 10-36: more teeth at the rear make climbing easier

Technical specifications

• Model: SRAM Red XG-1290 E1
• Speed: 12
• Fitting: SRAM XDR (not compatible with XD)
• Material: Steel, machined single-block X-DOME
• Weight (10-28T): 180 g
• Teeth 10-28T: 10-11-12-13-14-15-16-17-19-21-24-28
• Teeth 10-30T: 10-11-12-13-14-15-17-19-21-24-27-30
• Teeth 10-33T: 10-11-12-13-14-15-17-19-21-24-28-33
• Teeth 10-36T: 10-11-12-13-15-17-19-21-24-28-32-36
• Part code 10-28T (Silver): 00.2418.142.000

Founded in Chicago in 1987 by Stan Day and a group of cycling enthusiasts, SRAM is still based in the US city today. It makes drivetrains and brakes for road, gravel and mountain bikes. Its story began with a single product: Grip Shift, the shifter that lets riders change gear by twisting the grip.