If your handlebars are heavy to turn/sticking, you most likely need new head-bearings.

I had the same issue on my Tenere. But it started out with a worn front TKC80, and I thought that was the problem. After installing new Avon Trekriders, I still had the same issues, almost falling over in bends, and then overcompensating because of resistance... It was really unpleasant to drive.

First step is to find a better tyre shop mate. Ask them to take off the front wheel and tyre and check it out as well as the inner tube. Could well be that they overtightened the wheel nuts which makes the steering strange. Perhaps you need to change the wheel bearings too.

I'm also facing this issue, firstly i thought it was because of new front tkc80, but about a thousand kms after it's still like the same, cornering at low speeds is a bit strange, feels like the handlebar is stuck in the middle. Checked the torque of the pinch bolts and its ok, couldn't confirm the torque of the axle but I tightened it with a good force. Maybe the suspension got misaligned when removing and installing the front wheel? Should the axle not be too tight?

Thanks for any help.

I dont think the axle-torque has anything to do with it. Why should it?

If something is wrong with the torque or the alignment of the forks, either the wheel would be heavy to revolve, or the disks would stick on the brake-pads. It should not have any effect on the steering.
Remember how much leverage you have on that tiny spot of rubber that is in contact with the ground. If that was a problem, it would be even harder to turn at standstill

Change your head-bearings. I am 99.9% sure. You have more or less the same symptoms as I had.

Sticking tyres
 

Hi when I changed from the stock metzlers to tkc80's on the front tyre I had and still have the same problem, low speed mini roundabouts are particularly tricky. It seems that the tread pattern grips the road, I also found the bike tended to hold a straight line more than the previouse tyres. Its just the design of the tyre.

I would personally go with this chap

Thanks for your help,
Initially i thought it was due to tire pattern but I'm thinking it's a bit too bad handling for this kind of tire, had a Michelin t63 and I don't remember to ride like this even in new.
The thing is it fells free to steer when in center stand or with the bike stopped, but I think that if the bearings are dry it might feel more when riding because of the forces and load onto the bearings. Maybe I'll give it a check when I can.

Well your thoughts were completely right, I had the lower steering bearing rusted an dry, only when i removed the handlebar I could really feel the steering stuck... Gave it a clean and regreased both bearings and the problem went away, the bike now handles a lot better at any speed/ surface. I feel like i removed 100kg to the bike, so much pleasant to ride it again. No problems at all with the tkc80, now I can push it harder and so far the tyre rides great at any kind of terrain.

Thank you very much or your help!! :occasion14:

Just glad to help!

i had the same problem...

just putted some WD40 and it unlocked it.

it is not recommended, i changed the bearing 4 days after at Yamaha, WD40 was just to test.