ZTTO MTB Road Bike CNC Bicycle Rear Hanger Derailleur Extension Extender FOR Wide Ratio Cassettes Colorful Roadlink Bicycle Part

ZTTO REAR DERAILLUER HANGER EXTENSION-CNC version

Tech Specs:
Material : 6061 aluminum
Bike Type: Road Biycles Mountain Bikes
Packcing included:1 Pcs
FOR Wide Ratio Cassettes
Weight :about 11.4g
High-precision CNC manufacturing to ensure fast gear change.

You can use this to easily change the maximum teeth that the rear derailleur adapts.

for exmpale , if your derailleur original max for 28T, add this extension, you can use 32T /34T
if original max for 36T, it will up to 42/46T
if original max for 40/42T, it will up to 50/52T

*The derailleur hanger extension is a unique device that offsets the position of your road derailleur to make it possible to run a wide-range mountain bike style cassette.
*It is made of aluminum,and has a great strength and lightness.
*It is an ideal solution for riders looking to convert their road, gravel, cyclocross, or commuter drivetrain bike to attain the simplicity and reduced weight of a single front chainring but without giving up the gear range of a double.
*It is also great for riders with double chainring bikes that want lower gearing for those ultra steep climbs. 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 40T cassette.
*It is easy to install and remove, even though you are an amateur.