(I'm pickin' up) Bad Vibrations

[Martyn B]

I've just changed my tyres (Tourances) and I'm now getting a high frequency vibration through the pegs and seat (not the bars). Not enough to take it to the dealer but but enough to be annoying.

There may be no coincidence at all - or someone out there may know different. I was just looking at a thread on the 1150 Forum which indicated that this is a known Tourance problem. I never had it on my old 1150 which was always Tourance-shod but this is the first time I've had them fitted on my 1200 GSA.

Any pearls of wisdom would be gratefully received.

 

[Nice 'n' Fat]

Your 1150 probably had the 'old style' Tourances?

 

[Slowdown]

Are you sure the wheel's balanced???

 

[cookie]

Are you sure the wheel's balanced???

yes, check that first.

 

[Martyn B]

Good point, however...

Are you sure the wheel's balanced???

.... it looks like they've been balanced as the mounting adhesive from where the weights were is still there and now we have some weights in other places. I left the bike while they did it so didn't actually observe the process.

Whether they balanced them correctly however......

 

[Nice 'n' Fat]

On the tyre sidewall there will be a coloured dot which should be lined up with the valve before balancing the wheel

 

[Slowdown]

On the tyre sidewall there will be a coloured dot which should be lined up with the valve before balancing the wheel

If only it were that simples?

 

[Taff]

On the tyre sidewall there will be a coloured dot which should be lined up with the valve before balancing the wheel

You sure? I thought the coloured dot went opposite the valve.

 

[red1]

Dot was always supposed to show the heaviest part of tyre and is therefore positioned opposite the valve to even out the initial balance before weights are attached.

 

[gavin@iow]

You sure? I thought the coloured dot went opposite the valve.

The coloured dot is the light spot of the tyre, much easier to put next to the valve than opposite.

 

[Martyn B]

Impressive....

Dot was always supposed to show the heaviest part of tyre and is therefore positioned opposite the valve to even out the initial balance before weights are attached.

This site is a constant source of wonder.....

However, there are two dots red dots on the tyre about half inch apart. They are near the valve, not opposite.

The site of the old weights were opposite the dots but whether through sloth or practicality, the new ones have been placed as near as poss to the old positions rather than removing the old crap and putting them on top.

So, this is sounding like a trip back to the tyre fitter.....

 

[alimey4u2]

The valve stem is "not neccessarily" the heavy part of the wheel. A good tyre changer with first note the heavy spot, then fit the tyre & balance. Yes the dot has been standarised to be the lightest point on the tyre, just to challenge the oldtimers...

 

[red1]

I stand corrected

 

[alimey4u2]

I stand corrected

In the old daze, some brands & country of origin tyres were marked as heavy. This became standardised ( dunno when) to be the light point. It caught me out too....

 

[Pukmeister]

Does the sidewall have a Yellow dot?

 

[Glyno]

Dying to know

When all the dots are finally joined up

Whats the drawing

 

[alimey4u2]

Does the sidewall have a Yellow dot?

"Normally" signifies the lightest point on the tyre......

 

[Nice 'n' Fat]

Yellow normally but sometimes red and sometimes blue