X.5 10x Rear Derailleur Optie:Rear Derailleur X-5 10-speed Long Cage Aluminum Black Custom carbon layup equalizes impact

Custom carbon layup equalizes impact forces on both the long and short sides of the rim

we've created a steel rear axle for 135/142mm & singlespeed Neo hubs that's optimized for durability

Instead of plastic

Mesh inserts for optimum ventilation

X.5 10x Rear Derailleur Optie:Rear Derailleur X-5 10-speed Long Cage Aluminum Black Custom carbon layup equalizes impactLeveraging the legendary history of SRAM shifting, the X5 rear derailleur provides incredible shifting speed and precision. EXACT ACTUATION technology eliminates slop and shifting variation. Speed (RD): 10s, 9s Cable pull Ratio: 1: 1, Exact actuation Cage (RD): Long, Medium Max tooth: 34, 36 Color (RD): Black, Silver Pulley bearings material: Steel Cage material (RD): Aluminum