If the steering head bearings have been recently replaced, the steering stem torque may be out of spec and too tight.
If the steering head bearings were replaced by tapered roller bearings (such as All-Balls replacement) they require less torque than the OEM ball bearings.
If the bearing races were not fully seated into the frame, a side load can be created during torquing which can tend to bind the bearings.
Not only will it wear the bearings out quickly, but also cause a bad wobble.
Too tight steering head bearings can induce a wobble even at low speeds, and can be very dangerous.
Have them checked pronto.
As a side, I replaced the OEM steering head bearings on my old VFR800 with All-Balls tapered bearings.
What I found was, the bearing races were not exactly the same O.D. as the OEM bearings and did not fully seat, regardless of how many times I tried to install them. Unsure if this was a manufacturing issue or what.
I ultimately removed the All-Balls tapered bearings, ordered OEM ball bearings, and they popped right in and seated easily after freezing overnight.
Last edited by SubSailor; 02-27-2020 at 12:15 AM.