SRAM XG-1290 E1 Silca Molded internal stiffening plate optimizes

Molded internal stiffening plate optimizes power transfer and off bike comfort

Create an air tight seal for BST rims

Black = 0 degree

Bell slides along the bracket

SRAM XG-1290 E1 Silca Molded internal stiffening plate optimizesDesigned 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 Attributes Cassette Freehub Compatibility XD R Cassette Spider Mat. Steel Cassette Technology X