Wheels Manufacturing Derailleur Hanger - 237 MFPN=185-0038014030 Pre-bled and assembled with Hayes

Pre-bled and assembled with Hayes K2 hose: The stiffest hose possible for maximum power and control transmission Brake Lever Actuation Hydraulic Rotor Included No Brake Caliper Type Post Mount Color Black Hydraulic Fluid Type DOT Brake Lever Use Left or Right Pad Compound Semi-Metallic Adjustable Reach Yes Position Front

13-tooth upper and 19-tooth lower aluminum pulley wheels with Grade 3 Silicon Nitride balls

Wide range 8 speed group based on the same simple principle of the Prime 9 groups

Optimized shifting gate design

Wheels Manufacturing Derailleur Hanger - 237 MFPN=185-0038014030 Pre-bled and assembled with HayesWheels 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