SRAM XX1 Eagle XG-1299 12 Speed Cassette - XD Driver - Gold - Black - 10-50T - 12 Speed YGroup_7033771556909 It includes a pocket-sized carrying

It includes a pocket-sized carrying pouch to stash your I

NFC pairing for fast and easy connection by BLE to a phone

Now with a new 25% slimmer profile

Only for use with Presta valves and threaded cartridges

SRAM XX1 Eagle XG-1299 12 Speed Cassette - XD Driver - Gold - Black - 10-50T - 12 Speed YGroup_7033771556909 It includes a pocket-sized carryingThe XX1 Eagle cassette is the ultimate choice for high performance race bikes and top end builds. Available in Gold, Rainbow, and a new Copper finish, these things certainly look great, but it's all the tech and fancy engineering beneath the surface that really makes these cassettes special. The cassettes are built around SRAM's X Dome architecture to create an incredibly lightweight and strong design with excellent mud clearing properties. X Glide 2