Wheels Manufacturing Derailleur Hanger - 420 MFPN=00.4021.080.009 }Zipp Freehub Kit - 10

}Zipp Freehub Kit - 10 to 11-speed 188 SRAM

year 2015+ model BoXXer (B1) description Charger bladder assembly

Bottom gripper tape on the back keeps the jersey from sliding upward

tapered leading edge to deflect pedal strikes on rough terrain

Wheels Manufacturing Derailleur Hanger - 420 MFPN=00.4021.080.009 }Zipp Freehub Kit - 10Wheels Manufacturing hangers are stiffer than almost any OEM hanger which improves durability and shifting performance. OEM hangers are only produced by a handful of manufacturers mostly in Taiwan and China. As a result you will see many bikes with exactly the same hanger. Bicycle manufacturers may make mid year changes. Please use the hanger photos to select the proper hanger for your application. CNC machined 6061 aluminum Made in the USA