X01 Type 2.1 Rear Derailleur Optie:Rear Derailleur X01 Type 2.1 11 speed Red IRC uses a high abrasion

IRC uses a high abrasion resistant rubber compound for the tread to increase durability and lower rolling resistance

48mm Headset: FSA integrated

and self-cleaning design make this the perfect choice for cyclists venturing off the road for the first time

as the name suggests

Application: Road - Technologies: Power Glide - Crank arm material: aluminum - Chainrings: 53-39T

X01 Type 2.1 Rear Derailleur Optie:Rear Derailleur X01 Type 2.1 11 speed Red IRC uses a high abrasionThanks to its horizontal parallelogram design, X HORIZON can keep the chain gap the same across all 11 gears. By taking vertical movement out of the equation, this design doesnt just make shifting fasterit reduces shift force and eliminates ghost shifting. ROLLER BEARING CLUTCH technology reduces bounce and chain slap. CAGE LOCK technology makes wheel removal and installation easier than ever before. Paired with the X01 shifter, the X HORIZON&trade