I have a 2002 GL1800. I had the wobble which was bad at 40-45 mph. the bike wobbled with stock OEM tires, then Dunlope Elite 3, tried Metzler's and it was worse and took them off immediately. I installed tapered steering head bearings and the wobble was gone forever. Ran sets of Dunlop Elite 3's for first 76,000 miles on the bike with no more wobble. Dunlop is a great tire. I Just installed AVON Cobra's, wow! improved handling and cornering, love them so far, just put on 2900 miles,felt a little loose until they broke in @ about 175 miles. I like them better than the Elite 3's. I also have progressive fork springs, a fork brace, and amsoil synthetic fork oil and I just installed progressive rear shock. Bike handles different but great. Took a little getting used to the new suspension set up and new tires all at the same time. Rides stiffer but is more responsive. Note: I keep the tire pressure up and check it daily when traveling. I assume everyone maintains proper tire inflation.Put on A metzler front this morning and guess what, the wobble was way worse!!!.
Next step they are going to check the torque on the steering head.
As a side note I asked for and got to ride another wing and there was no wobble ..... hmmm
Paul...I agree with you...but I do have the answer for you....My honda dealer said honda is aware of it but does not consider it a defect since they believe it only shows up when you take your hands off the handle bars...and they say that is unsafe and not part of bike riding...thus no recall...I fail to understand why Honda does not recall their product to rectify this issue, why should the customer be changing stering head bearings? I have a 01 Wing with and when I bought it last year it had 2000 km's on it. With the stock tires ( Stones) it wobbled when decelerating through 30 mph. I put new Dunlops on the bike and it is just slightly better. Speaking of Dunlops, the Elite 3's are positively scary crossing tar strips in the wet.