SRAM XX1/X01 Eagle Rear Derailleur Pulley Set Apollo Battery: Rechargeable Lithium-ion

Battery: Rechargeable Lithium-ion

and good luck

2-piece cranks: ultra-torque 630 steel axle & UD carbon arms – strong and lightweight

Many hands make light work especially when combined with our 3-step Clean

Raceable Form Factor: Power meets performance in a sleek but robust design

SRAM XX1/X01 Eagle Rear Derailleur Pulley Set Apollo Battery: Rechargeable Lithium-ionHigh quality rear derailleur's upper and lower pulleys with sealed ceramic bearings make the leap to reduced friction, increased stiffness, lighter weight, and added durability. 12 teeth upper, 14 teeth lower pulley. Specifications Included in delivery: 1 pair Material: Bearings: ceramic hybrid bearings Activity: Cycling Usage Bikesport: Road Bike, MTB Shifting System (Manufacturer): SRAM Number of Gears Rear: 12 Rear Derailleur Accessories: Jockey