I removed the cheepy stamped lbs 15t cog from my road bike suzue hub and installed a 16t duraace cog..
I re-installed the lockring and found that it did not go in as deep as with the other cog... it turns out the duraace is a few mm thicker than the other cog..
so i tigten it all up and ride it ... about 10.5 miles down the road, i lock up the back and i don't stop !! then i'm freewheeling and going nowhere... thanks shimano ! =(
I stripped the lockring threads ...
so now I have a dead hub that I have to replace ... just got it a month + ago ... =(
I managed to get the lockring back on, and I used a liberal dose of thread locker (RED) on it ... I rode it to work and it was ok (didn't try to skid) ... and it was fine...
either way, I think I need a new hub .