Bonneville America Forums Forums Technical Forums General Tech vibration in front tire at 70 mph

wife an I went on 200 miles ride last Sunday.About 12 bikes to Charleston,s.c. Had a great time but coming back at about 70 mph front tire started vibrating. Slowed down to about 60 an vibration seem to go away. Checked air pressure after I got home an tire was cold an had 30lb. in tire. Any idea's what might cause this to happen?

"Doing something impossible is always fun"

any weights missing? and have you hit any potholes that may have bent the rim?

Frank

I had a bent rim... Does it happen more or less when turning/leaning from one side or another?

I've also seen bikes that just disagree with a particular tire pattern. Are you running stocks, or did you put on new tires recently?

--Jaeger

You have a high speed wooble, not necessarily caused by the front wheel even though you feel it in the front. I had one once and it turned out to be caused by rear shocks.

thanks guys for all the help. I had checked weights, etc. an had not hit any potholes. I will go to work checking shocks etc. Still running stock tire.
Thanks for all the help again.

Sometimes the tire will cup with age. I ran a Metz330 once and it started weebling real bad. I changed the tire out and no more wobbles. That Metz had about 7K on it. The Mag Mopus is known for tracking road grooves and getting real hard and cracky with age. You haven't said which bike you have. The Mag Mopus is oem on the america. If you have 10K on that tire, change it out and forget about it for another year or so as the wobble will not be there anymore.

PS: Also lift the front end off the ground and grab holt of the front forks and try to see if there is any play in the headset. Ensure the fork shocks are working right, and make sure your front spindle and pinch bolts are torqued to spec. Make sure the caliper is bolted up too.

My stock bridgestone went at about 4500 miles stated to vibrate at about 65 MPH. New tire no vibration