Wheels Manufacturing Derailleur Hanger - 23 Model=GR 531 Rim IS42 is not compatible with

IS42 is not compatible with Specialized bikes or bikes using the Campagnolo Hiddenset standard

The other side accepts standard 1/4" hex drive bits (not included) which are held in place using a strong retaining magnet

Dimensions: outside 147 x 85 x 36cm (57

UST compliant bead hooks border a tape and sealant-driven inner rim profile providing standards-based repeated tubeless consistency Rear Axle 12mm Thru x 148mm Rim Width (Internal) 30 Cassette Body Type SRAM XD Valve Presta Wheel Size 27

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Wheels Manufacturing Derailleur Hanger - 23 Model=GR 531 Rim IS42 is not compatible withWheels 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 Fits Brand