SRAM - RED XG-1290 Cassette, 12s

Sram's Red XG-1290 cassette provides smooth, fast progress over an even wider range. It is specially designed for the eTap AXS electronic drivetrain, and its one-piece construction reduces weight considerably. It uses X-Dome technology to create a light, precise and durable cassette. The open structure evacuates mud, improving shifting performance and component life. What's more, the X-Range offers a wider, more progressive development range and smarter shifting.

• New design for smoother, faster gear changes.
• More progressive sprocket spacing - at least five jumps of a single tooth - while offering a wider range of developments.
• The 10-tooth start enables a wider range of developments.
• Designed to work with an XDR freewheel body
• Weight-saving X-Dome design in one-piece machined steel.
• All Zipp wheels from 2012 are compatible with an XDR freewheel body.