SRAM XG-1290 E1 Cassette Specs:SRAM, XG-1290 E1, Cassette, Rainbow, Speed: 12, 10-30T, XD-R Fully lined with 100% Polyester

Fully lined with 100% Polyester taffeta

and everything else follows

• Narrow-Wide design specifically tailored to road/cx/gravel applications

• Transitions from 34mm to 32mm to 34mm Grip Length : 130mm

SRAM XG-1290 E1 Cassette Specs:SRAM, XG-1290 E1, Cassette, Rainbow, Speed: 12, 10-30T, XD-R Fully lined with 100% PolyesterDesigned 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 Speed : 12 Cog Material : Steel Cassette Spider Mat. : Steel Cassette Technology : X Dome