Originally Posted by
bicyclridr4life
I think I need to replace the headset on my 1989 KHS Montana Summit mountain bike, which uses a 1 inch threaded headset with loose bearings (if memory serves, but they might be caged).
The reason I think I may need to replace it: It works loose after only 200 to 300 miles or so, and yes, it is assembled properly, and the threads are not damaged.
If the headset "works loose" and the threads on the steerer are not damaged then the locknut is not being tightened sufficiently against the top race. Replacing the headset won't solve that problem.