40mm Quick Change motor adapter for 40mm diameter motors

Quick-Change motor adapter for 40mm motors, for use with TFL motor mounts that use the 53mm-wide front mounting plate.
 
See picture two for this installed on a motor.

This works by screwing it onto your current motor mount, then you can use the top clamping screw to tighten the motor into the clamp from the top. This helps to make a quick release of the motor with one top screw that's easily accessed, without having to fight the front screws. 

Note: Motor not included. 

Specs
Width: 53mm
Fits: Most 40mm diameter motors that have a 25mm motor spacing with m3 screws.