Lockring for Bruiser Wheelhub

If your you´re left front wheel on the Bruiser doesn´t spin, then maybe the "Lockring" in the wheelhub broken.Remove the ball bearing and you should see the broken lockring. Remove the leftovers and clean the hub.
The lockring is over size, after printing you should sand the printing lines out of the outside of the ring. Then you can use a 13 mm socket to press the ring in the hub. After this you can assemble the hub.
Make sure that you install the lockring bevor the axle adapter.
After that your wheel should spin again.
Everything that is mentioned here is at your own risk. You could damage the hub and also hurt yourself.
I printed mine in PLA and it works but you maybe should use PETG.