SRAM Red Cassette XG-1290 E1 Rainbow 12 Speed

Wide range and tight jumps? Why not both? Our lightest, most durable cassette breaks new ground for gearing choices as well. Four distinct cassette options, including our first 10-30T and 10-36T RED cassettes, each provide secure shift ramps specifically designed for electronic shifting, whether racing road on a 10-28T or creating an all-road setup with a 10-36T. Carefully chosen tooth jumps keep you in the right gear when you’re out of the saddle on steep climbs and making fine changes to hold a wheel while approaching a sprint.

Features
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
10-30T and 10-36T options available in RED for the first time
Designed to work with an XDR driver body
One-piece machined steel X-DOME design for weight savings
Available in 10-28T, 10-30T, 10-33T and 10-36T

Specifications
SPEED (CS)    12s
GEARING    10-28t, 10-30t, 10-33t, 10-36t
COG FINISH (CASSETTE)  Rainbow
TECHNOLOGY (CASSETTE)    XG
COG SIZES    10-28t;10,11,12,13,14,15,16,17,19,21,24,28, 10-30t:10,11,12,13,14,15,17,19,21,24,27,30, 10-33t;10,11,12,13,14,15,17,19,21,24,28,33, 10-36t:10,11,12,13,15,17,19,21,24,28,32,36

Mfr Claimed Weight
180g - 10-28