Vibration when leaning into a turn?

[Sonny]

I have a vibration when leaning into a turn. When the lean is to the left the vibration is stronger then to the right. The wheel bearings feel smooth. Could they still be bad? Any suggestions  ???

[Chrisj CMA]

Yes, The easiest test is to lift the bike so the rear wheel is off the ground.  Then grab the wheel at the bottom (6 oclock position) and see if there is a slight "tic tic" movent side to side..........if yes, bad left wheel bearing is probably the culprit

[R J]

How many miles on the front tire and at what pressure have you been running it?

2nd test.   Run your hand over the left edge of the tire and see if you feel a wavy tread.

If # 2 stands up, air it a little higher and run it till it is worn out.    Cupped front tires wil cause a vibration.   I run 45# in my front tire.  36# in my GoodYear Triple tread.

[old2soon]

Also have a look at the shock bushings. RIDE SAFE.

[JC]

Is yours a 1997 model? The 97 front bearings are a different size from all the rest, and some of them were known to fail in the 25,000 mile range.

Some tires can also hum and/or vibrate in turns, generally the older they are the more they'll sing.

[Momz]

When I bought my I/S it had a new set of Bridgestone tires. I'd get a rumble and vibration in corners, as well as an overall spooky feeling while cornering or braking.

All that changed when I changed to Avons.

[mario]

Also have a look at the shock bushings. RIDE SAFE.

+1

[Blues]

I have the same problem.  Actually I have been experiencing vibration which has gotten increasingly worse since I had my local dealer install new tires last year.  Unfortunately I didn't sit in on the changeout so I'm stressing over whether they knew what the heck they were doing on the rear end.  I'm gonna tear into it myself... just trying to determine what all parts I need to have on hand before getting started.

As this has been playing out, I have noticed a vibration in turns that is getting worse.  I notice it at all speeds, but when straight cruising about 55, I feel a slight vibration in what feels like the drivetrain.  As I lean into a corner (either direction), the vibration suddenly gets noticeably worse.  My tires should be fine... I am running about 40# in front and rear.  I had forgotten, but BigBF did tell me that I needed new shock bushings so maybe this is causing it.  Thanks for the reminder O2S!

Anyway, I remember just how smooth a ride it was in the past.  Any vibration, especially in the turns, can be a big distraction on these curvy mountain roads.

[tonyfan70]

Rear tire wear will also cause a vibration.  I have an odd wear pattern on my rear tire...happened with both my E3 and whatever was on there before...after alot of research,  I found the wear is caused by heavy acceleration.  The wear is noticable on the chicken strip area, not in the middle area of the tread.

Not that this is your problem, just wanted to point out that rears can cause it too in turns.

Heavy acceleration, whodathunkit.

[Sonny]

Air pressure is good, 37 rear, 38 front. Tire wear on front is barely visable. Tire only has about 4,000 miles on it. Rear is new, maybe 1500 or so. No side to side movement in front or rear. Tires roll smooth when on the jack. Shock bushings are good even though original. I only weigh 160 so not any load fort he bike. I thought the drive shaft and pinion cup issue I had was causing the vibration but thatwas not it. All parts replaced with new. Drive line is smooth. The only real change is these tires. These are Metzlers always run Cobras before. My VTX has Metzlers and they have been fine. Thought they would be OK. Could it just be the tires?  What about the fact that I have Dyna Beads in the rear and weights on the front ?

[old2soon]

Up the tire pressures to around 42 44 P S I fromt and around 44 46 rear. I know it's only a couple of P S I but humor me please. RIDE SAFE.

[Jess from VA]

Air pressure is good, 37 rear, 38 front. Tire wear on front is barely visable. Tire only has about 4,000 miles on it. Rear is new, maybe 1500 or so. No side to side movement in front or rear. Tires roll smooth when on the jack. Shock bushings are good even though original. I only weigh 160 so not any load fort he bike. I thought the drive shaft and pinion cup issue I had was causing the vibration but thatwas not it. All parts replaced with new. Drive line is smooth. The only real change is these tires. These are Metzlers always run Cobras before. My VTX has Metzlers and they have been fine. Thought they would be OK. Could it just be the tires?  What about the fact that I have Dyna Beads in the rear and weights on the front ?

IMHO your pressures are too low.  I ran many sets of ME880s... 45 rear 44 front (note the sidewall printed MAX psi on both front and rear tires is 50).  Whenever I hear someone complaining of vibration in turns, I think it is the front tire.  I could be wrong.  I know nothing about dyna beads, always had my tires balanced at a shop.... and never had irregular wear.  Bump them up, see if it doesn't help.

[Sonny]

I'll give it a try and see. Can't hurt.

[JC]

IMHO your pressures are too low.  I ran many sets of ME880s... 45 rear 44 front (note the sidewall printed MAX psi on both front and rear tires is 50).  Whenever I hear someone complaining of vibration in turns, I think it is the front tire.  I could be wrong.  I know nothing about dyna beads, always had my tires balanced at a shop.... and never had irregular wear.  Bump them up, see if it doesn't help.
[/quote]

+1   

[Red Diamond]

How many miles on the front tire and at what pressure have you been running it?

2nd test.   Run your hand over the left edge of the tire and see if you feel a wavy tread.

If # 2 stands up, air it a little higher and run it till it is worn out.    Cupped front tires wil cause a vibration.   I run 45# in my front tire.  36# in my GoodYear Triple tread.

Once they start that vibration in the turns, left or right, the only thing that will take it out is a new  tire at the right pressure to prevent it. As RJ stated air it up and ride it until the tire needs replacing. It  will only vibrate in a turn, so why change it, unless you have money to burn.