OK - I got minor headshake on my 35,000 mile C14. I snugged down the nut that loads the stem bearings, didn't have the means to torque it properly. Snugging it minimized the shake quite a bit. I have dis-similar tires on the front/rear since I flatted a rear, and then replaced the front. I had PR2s on and the bike was rock solid.
I now have minor bar wiggle between say 55 and 65 mph. At 70 mph or over it's gone.
My question is anyone who has swapped over to needle bearings in the head set, has your head shake returned AFTER making the switch???
My troubleshooting process will be:
1. Confirm proper torque on stem bearings.
2. Buy a new set of PR3s.
3. Swap out stem bearings for needle bearing set.
Thoughts
Thanks,
Barry