SRAM XX1 Eagle XG-1299 10-52 12 Speed Cassette Rainbow Size:10-52 Optional action camera adaptor available

Optional action camera adaptor available separately

GX Transmission Flattop chain

Silicon Shine not only leaves your bike looking factory fresh

2 Blue Box Tool Case was designed and built to meet the needs of the professional bike mechanic

Individually resettable code (4-digit)

SRAM XX1 Eagle XG-1299 10-52 12 Speed Cassette Rainbow Size:10-52 Optional action camera adaptor availableAbout SRAM XX1 Eagle XG 1299 10 52 12 Speed Cassette Rainbow Whether for prized race machines or the build of their dreams, the XG 1299 cassette is the ultimate, giving riders unprecedented 520 percent range thanks to the new 10 52 tooth span. Stronger racers are now free to choose larger chainrings for more top end speed, without sacrificing climbing range. More time is spent higher up in the cassette where athletes power transfer is most efficient