This is off a customer bicycle. A Jetson from Costco, I noticed it was stripped while adjusting the rear brake.
I replaced entirely in the moment but used the discarded part to learn how to do it better next time.
This is off a customer bicycle. A Jetson from Costco, I noticed it was stripped while adjusting the rear brake.
I replaced entirely in the moment but used the discarded part to learn how to do it better next time.
The part is Aluminum and the screw going into it is steel.
The threads wore down due to the part being loose
Steel is harder than aluminum so the screw destroyed the part rattling around in the threads and being pulled when brakes were applied
The heli-coil is steel and secured with red locktite. So now it’s a steel on steel interface and is stronger than before.
Torque wise brake mounts typically require 70-90 inch pounds (7.5 ft pounds on the high end) of torque. (In most cases tight is correct)
I repair threads in aluminum electric motors regularly with these and they work wonderfully ! Cheap easy and stronger than the original.