This derailleur hanger extension is a unique device that offsets the position of your road derailleur to make it possible to run a wide range of mountain bike style cassette

It does not compromise the shifting in the smaller cogs of the cassette but yet it enables the derailleur to work with as large as a 50T cassette.

CNC Alloy, Size: approx. 45 x 21mm/1.77 x 0.82inch, Includes 6061 aluminum bolt, Weight: approx. 11g

Center distance between two holes: approx. 22m/0.86inch, Apply to 40T/42T/46T/50T mountain cassette or 32T/36T highway cassette.

* Estimated Delivery Time: 10 - 25 days

MTB Mountain Bike Rear Derailleur