Wheels Manufacturing Derailleur Hanger - 321 Trek D1 Air Can Assembly it is engineered for impressive

it is engineered for impressive efficiency and runtime providing the best beam pattern for optimal light dispersion in even the most challenging conditions

Tapered steerer tube for maximum stiffness

High strength 7-series aluminum alloy

Spindle Interface Type TruVativ GXP

the Ikon provides exemplary performance in all riding conditions

Wheels Manufacturing Derailleur Hanger - 321 Trek D1 Air Can Assembly it is engineered for impressiveWheels 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 Black anodized finish Made