I ride a 07 Deuce with drag bars and when I throttle off the front end wobbles. It only happens at speeds above 50mph. If I lean on the bars or pull on the bars it stops. Just wondering if thats normal. The front tire does need replacing soon. Maybe not balanced properly or the drag bars have an effect.

 

Air pressure?

 

I would get the new tire and balance if you think it needs replaced. If it stops when you push or pull on the bars then maybe check the bushings going from the bar to the triple tree. Had a couple buddies where their's went bad and felt a little loose.

 

check and possibly replace wheel bearings
someone else just had similar problem it was bad wheel bearings
i suggest timkens

 

I've been chasing a similar problem but my wooble is happens during decel between 30-40 mph. I've tried everything except the front tire. With 15K miles on the tire I'll be replacing it soon so we'll see if that's the issue.

 

I am not suggesting that this is the problem, it was mine. Wobble was bad! Replaced wheel bearings, changed fork oil, Checked tire run out axially and radially, checked steering head. Still wobbled. If you look at my garage, that super cool looking front wrap down fender...well nothing but and air scoop! Cut the fender back wobble gone! Who would of thought?

 

Junk tire was my wobble cause!

 

I just went through this and it was the neck bearing. Performed the fall away adjustment per specs in the service manual and all is good.
Possible issues:
cupped or worn out front tire
front tire out of balance
front tire air pressure
back neck bearing
neck bearing out of adjustment
front wheel bearing
front brake rotor

 

Thanks everybody great info. Looks like lotsa different possible reasons this could be happening. I think I'll start with the new tire and see what happens from there. Thanks again!

 

keep us informed. I have the same issue, but my wobble started after a new front tire was installed by a dealer. I have a laced front wheel so i am going to check the spokes. For some reason I think it is the front tire.

I too have done the fall-away. It needed adjustment, but it did not make a difference with the wobble.