NEW SRAM X01 Eagle AXS Upgrade Kit - Rear Derailleur for 52t Max, Battery, Eagle brand_all-city You can use your old

You can use your old Dura Ace brifters

The WTB Cross Wolf tackles the racecourse

Shimano OT-SP41 Housing & Stainless Cable Derailleur Sets

Fits Brand: Trek

Shimano 12 speed Micro Spline

NEW SRAM X01 Eagle AXS Upgrade Kit - Rear Derailleur for 52t Max, Battery, Eagle brand_all-city You can use your oldThe SRAM X01 Eagle AXS Upgrade kit includes all of the electronic shifting components needed to introduce customizable AXS technology to your Eagle drivetrain. Includes the SRAM X01 Eagle AXS rear derailleur with battery, Eagle controller with clamp, and charger and cord The Eagle AXS controller offers a unique wireless shifting experience with ergonomic touchpoints that are customizable to your preferences you can choose what each button does through