Wheels Manufacturing Derailleur Hanger 553

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 hangers DO NOT INCLUDE attachment hardware with the exception of QBP # FS1561 (DROPOUT 399) CNC machined 6061 aluminum Made in the USA Attaches to frame with M4x12mm Flat Head Screw Fits Argon 18 models: Aerfast.4 (2021+), Aerfast3 (2020+), E-117 Tri Disc (2019+), E-118 Tri+ (2019+), E-119 Tri+ (2021+), Gallium Disc (2018+), Gallium Pro Disc (2018+), Gomera Ultra Disc (2021+), Krypton (2019+), Krypton Pro (2019+), Nitrogen Disc (2019+), Super Sport (2020+) Replacement for Storck part 16254-16 and Argon 18 part 38883 Specifications Fits BrandArgon 18Fits BrandStorck