Wheels Manufacturing Derailleur Hanger - 48 MFPN=WXM1700BEIXSA11569 The Shimano Ultegra FC-R8100 features

The Shimano Ultegra FC-R8100 features Hollowglide structure that cuts weight yet maintains strength for better power transfer and quicker more precise front shifting

6 Threadless Stack Height 10

Shoulder tread utilizes a moto-style block knob in a V-formation

The technical small-block tread layout of the Vittoria Barzo tire has constant effective-edge center and lean-dependent sipe angles

Integrated barrel adjuster is the only plastic component

Wheels Manufacturing Derailleur Hanger - 48 MFPN=WXM1700BEIXSA11569 The Shimano Ultegra FC-R8100 featuresWheels Manufacturing Derailleur Hanger 48. Wheels 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. These