ECSiNG MTB Bike Rear Derailleur Link Hanger Extender Frame Tail Hook Adapter Tool Red Aluminum Alloy Compatible with Flywheel Mountain 40T/42T/46T/50T/56T

Fitment: Compatible with flywheel expansion schemes such as 40T/42T/46T/50T/56T. Material: Made of aluminum alloy. And the locking screw is upgraded to 7075 aluminum alloy to make the locking torque greater. The surface is anodized, which will not fade after being exposed to wind and rain. CNC hollow design: The large-scale hollow and lightweight design, coupled with muscle-like plump and smooth lines, combination of power and beauty. Structural upgrading: Accurate adjustment, abolishing the limit position on the common hanger extender, increase the adjustment range, and easier to adjust in place. Also increase shift speed. Installation tips: Fix the tail hook extender to the previous frame tail hook with screws, and then install the rear derailleur to the tail hook extender.