Shimano Direct Mount Chainring Lockring Tool (12 Speed)

For removing and installing Shimano Direct mount chainrings, new 12 speed style.

Print with 4 perimeters and 25% infill in PETG.

Print with the notches facing up and supports on.

Clamp the tool in a vise and rotate the crank to remove the lockring.

I was able to remove and install 2 chainrings before the notches broke off. Buy the proper aluminum tool if you need to do this often.

Similar to Park Tool LRT-4 and Shimano TL-FC41.