My 800GS has a vibration through the handlebars that is quite noticeable at 40mph. It gets better either slower or faster, but it always there. Dealer: Its the balancing. I static balanced it and then took it back to the dealer for a spin balance. It was the same. Its the tire. So, we replaced the tire with another (Tourance). It was the same. I then replaced the Tourance with a like pattern Shinko. It was pretty much the same. I replaced the tube also when I swapped to the Shinko -- the Tourance is back on it now (Tourance on rear). Its the truing. They trued it. It was the same. Not sure if they checked the roundness, but there is no visible hop. They say that any big dual-sport with a 21" front wheel is going to have some vibration. I buy that explanation a bit, but other GSes I've ridden don't have it and my KLR650 didn't have it. Me: Initially I thought it was a tire or wheel issue, but it has proved very elusive... Tried different tire pressures. Checked and retorqued the steering head. Checked the brake rotors and axle to make sure they were straight - they are. Replaced the front bearings since one was a little notchy at 10k miles. I've put about 700mi on it now done the following in that time: Rear tire checked for true and balanced. Replaced the chain and sprockets going with a slightly lower gearing. Added a Scotts under-bar steering damper. [Love it!] Changed to Hyperpro springs front and rear with heavier fork oil. ...it is still the still the same! It is more of an annoyance on road than anything else. Off road, its a non issue. I can pretty much ignore it now, but it just irks me and anyone else that rides the bike notices it pretty quickly. They don't all do that, but does anyone else's? Any suggestions for next steps? I'm thinking: Find someone that will loan me a front wheel for a test (Seattle area). I'd hate to go down the below Woody paths and have it be a chassis or rear wheel issue. Take it to another dealer and try my luck. Send it to Woody for checkup. Buy a front wheel from Woody. I don't ride off road aggressively, but when I put the TKCs on it and hit fire-roads and two track, I'd prefer to have something stronger (based on other's reports of bending wheels).