Alpha II Disc EU Cassette Compatibility:Shimano 11 Speed Clamp: SL X9 X7 Trigger

Clamp: SL X9 X7 Trigger Discrete Clamp

Sapim Secure Lock nipple is a locking mechanism that prevents nipples from untightening

it is lightweight yet incredibly strong

Bottom: BSA73 Boost

Alpha II Disc EU Cassette Compatibility:Shimano 11 Speed Clamp: SL X9 X7 TriggerThe Alpha 40 II Disc is upgraded on the rims. The upgraded U V rim profile combines the aerodynamic stability of a U shape with the wind cutting efficiency of a V shape, delivering reduced drag and better performance in crosswinds. This design also enhances lateral stiffness for improved power transfer during sprints and climbs, while offering smoother tire to rim transitions for better handling, comfort, and versatility across varied terrains. This