- Upgrade or replacement rear derailleur dropouts; stiffer and more rigid to improve shifting performance
- CNC machined from solid 6061 aluminium to exact tolerances
- Stiffer than any original equipment hanger which improves shifting performance
- Still breaks before your frame does to perform its main function
- Direct replacement for original equipment with guaranteed fit
- Black anodised for extra scratch and damage resistance
- Laser etched for easy part identification
- Note: WMD399 is for M12x1 double lead threaded axles (Cannondale Speed Release). For regular M12x1 thru axles, please use WMD303.
Click and collect is available on all of our products. If it's on our website then we have it in our store!