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Tire Balance Weights ( Pirelli In This Case )


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Posted

Just curious but I just noticed today while washing my bike

( A good reason to wash your own bike at times even though it is so cheap here to get washed

is you notice things :) )

Anyway I just had Pirelli Rosso II's installed & spin balance

Today I note a load of stick on wheel weights on the rear.

Guessing they are grams but total 40 !

3 -10's & 2- 5's

Seems like a load of weight to achieve balance.

I also recall tires having a valve arrow of where to mount the tire to line up with valve

to accomplish balance better. I forgot to look & will go check if these have them or not.

But I am curious for those who have changed tires & preferably Rosso's

what kind of weight did they take to balance?

I know it is all subjective to tire lot & wheel etc but just curious

Thanks

Posted (edited)

i had them on my cbr500 and it is surprising to see them on a brand new bike man!

Well they are not really a result of bike or wheel but usually there to make up

for heavy spot in the tire. all new cars & bike wheels will usually have them.

Also some better tires will have the valve mark on the lighter side of tire so they can counter

that weight a little by the valve being the slightly heaviest spot on your wheel.

BUT, I was surprised to see the amount on my rear today.

I did go back & double check & yes the Pirelli Rosso has a double red dot on its sidewall

which I am pretty sure is to be placed at the valve which it is on mine so I cannot really complain

to the installer.

But again years ago I installed tires & did spin balances. If I ran across a tire like this I would take the time

to re-break the bead & spin the tire 180 degrees. Many times that results in less or no weights being needed.

Main thing is no wobbles due to balance at 55+ mph as that is where balance problems show themselves.

So again I cannot complain. But I was just surprised to see the amount of added wheel weights.

Edited by mania
Posted

Genuine Pirelli tyre fitted to alloy wheel shouldn't have any weights fitted. I'd take it to someone else for a check.

Posted

Genuine Pirelli tyre fitted to alloy wheel shouldn't have any weights fitted. I'd take it to someone else for a check.

Yes I am thinking of doing so.

I agree it seems excessive.

Funny too the front has a very tiny stock weight clipped center of the rim at the valve side.

I am thinking either the guy read the spin balance wrong or

they should spin the tire 180 degrees if they are seeing that much weight needed.

But that aside I thankfully have not experienced any balance problems

Posted (edited)

Genuine Pirelli tyre fitted to alloy wheel shouldn't have any weights fitted. I'd take it to someone else for a check.

Bit early for April Fools isn't it?

Edited by karlos
  • Like 1
Posted (edited)

bridgestone.jpg 'Bridgestone has introduced new tin weights for its Formula One and GP2 Series wheel and tyre balancing process from the European Grand Prix onwards. Processes have also been put in place to enable the recycling of these new tin weights.

The use of tin as balance weights is believed to have less of an environmental impact than weights made of lead, as previously used. Bridgestone uses almost a metric tonne (1000 kg) of wheel balance weights over the course of a season.'

I'm sure that a CBR500, Ninja250 / 650 would also need balancing too....... wink.png

Edited by karlos
Posted

bridgestone.jpg

I'm almost sure that a CBR500, Ninja250 / 650 would also need balancing too....... wink.png

every mid/hi speed tyre probably needs it ,but i have never been offered balancing at rama9 on every kawasaki i have owned for years

i dont know if they even know what it is or offer it as a service but i would definately pay more for perfectly balanced wheels

Posted

bridgestone.jpg

I'm almost sure that a CBR500, Ninja250 / 650 would also need balancing too....... wink.png

every mid/hi speed tyre probably needs it ,but i have never been offered balancing at rama9 on every kawasaki i have owned for years

i dont know if they even know what it is or offer it as a service but i would definately pay more for perfectly balanced wheels

No one should be 'offered' balancing "would you like your tyres balanced or unbalanced sir?"

A competent fitter with the right equipment would balance each and every tyre he/she installs regardless of the vehicles use.

I haven't personally had tyres fitted at Rama9 so i can't say what machines they have / use to fit new tyres for their customers.

My tyres are fitted by Showpow, On-Nut. I kick back, relax in comfy leather sofa, lapping up the air con and sipping on free drinks, then ride my bike home safe in the knowledge that i just watched them balance and install everything correctly. :)

  • Like 1
Posted (edited)

bridgestone.jpg

I'm almost sure that a CBR500, Ninja250 / 650 would also need balancing too....... wink.png

every mid/hi speed tyre probably needs it ,but i have never been offered balancing at rama9 on every kawasaki i have owned for years

i dont know if they even know what it is or offer it as a service but i would definately pay more for perfectly balanced wheels

No one should be 'offered' balancing "would you like your tyres balanced or unbalanced sir?"

A competent fitter with the right equipment would balance each and every tyre he/she installs regardless of the vehicles use.

I haven't personally had tyres fitted at Rama9 so i can't say what machines they have / use to fit new tyres for their customers.

My tyres are fitted by Showpow, On-Nut. I kick back, relax in comfy leather sofa, lapping up the air con and sipping on free drinks, then ride my bike home safe in the knowledge that i just watched them balance and install everything correctly. smile.png

if there was ever balancing weights fitted ,i would have noticed them because ive been through countless sets of tyres

and i usally monitor my tyre installation and pressures so if i have a mishap ,i will know it wanst due to underinflated or overinflated

tyres and reduced contact patch etc

i will ask them next time but i think when your ride in with new tyres they install em ,charge you 300 thb and you ride out

ive never heard of kawasaki thailand balancing tyres for anyone but possibly they checked and felt my tyres didnt need it........every single time biggrin.png

Edited by YipYipYa123
Posted

I'm sure that a CBR500, Ninja250 / 650 would also need balancing too....... wink.png

For sure & I agree if nothing else even if something is round it is not equal.

A simple cue is the valve stem. Which all else being equal has to be counter balanced.

Also balancing is something that is done to a complete wheel not a unmounted tire.

So weights added could also reflect the wheel is not a perfect example & there

is probably variance on all wheels, discs, sprockets at all levels.

The only reason this one caught my attention was the amount.

I had also noted the rear had a clip on factory weight on the rear

even with the IRC Stock Tire.

But although I did not note the weight I would guess it was a 5 & no more than 10 gram weight

Yet with this new Pirelli they have 40 stuck on there.

Seems a bit much & I have a hard time thinking a good grade of tire could be that far out.

I say tire because as I said the IRC was on there with almost no weights added.

So I have to conclude the wheel on this N250 is decent

But it is just something I noticed & not really a bother since there appears no balance problems

at any speed so far. If I remember next time I stop in

at Kawasaki I will mention & ask for a re-spin & offer to pay for it just to satisfy my curiosity.

Posted

bridgestone.jpg

I'm almost sure that a CBR500, Ninja250 / 650 would also need balancing too....... wink.png

every mid/hi speed tyre probably needs it ,but i have never been offered balancing at rama9 on every kawasaki i have owned for years

i dont know if they even know what it is or offer it as a service but i would definately pay more for perfectly balanced wheels

No one should be 'offered' balancing "would you like your tyres balanced or unbalanced sir?"

A competent fitter with the right equipment would balance each and every tyre he/she installs regardless of the vehicles use.

I haven't personally had tyres fitted at Rama9 so i can't say what machines they have / use to fit new tyres for their customers.

My tyres are fitted by Showpow, On-Nut. I kick back, relax in comfy leather sofa, lapping up the air con and sipping on free drinks, then ride my bike home safe in the knowledge that i just watched them balance and install everything correctly. smile.png

if there was ever balancing weights fitted ,i would have noticed them because ive been through countless sets of tyres

and i usally monitor my tyre installation and pressures so if i have a mishap ,i will know it wanst due to underinflated or overinflated

tyres and reduced contact patch etc

i will ask them next time but i think when your ride in with new tyres they install em ,charge you 300 thb and you ride out

ive never heard of kawasaki thailand balancing tyres for anyone but possibly they checked and felt my tyres didnt need it........every single time biggrin.png

LOL, sorry i didn't realise you had no weights at all on the wheels, i must have skimmed over that part.

The Shop i use fit all customers’ tyres and balances them for free.

I'm sure sundry items such as weights, tyre soap, electricity etc is all factored into their prices. Even if i wanted to just buy the tyre from them and take it home to sleep with it would cost the same :D And that 'same price' happens to be the lowest i can find :)

  • Like 1
Posted (edited)

ive never heard of kawasaki thailand balancing tyres for anyone but possibly they checked and felt my tyres didnt need it........every single time biggrin.png

Kawasaki Chiangmai has a spin balancer & used it when they mounted mine.

I remember way back when I was a tire fitter 1976 I think ? we had spin or bubble balance.

Heheh showing my age a bit smile.png

Bubble balance was just a cone like machine with a bubble level in a circular

glass container in the middle of the cone. You just set the wheel on the cone & add weight

to the opposite side of the bubble out until the bubble centered

Looked like this

These days its all spin which is much better

Edited by mania
Posted

I wouldn't worry to much about it, unless the weights are all spread out around the wheel. Maybe the guy balancing the tire didn't have a one heavier weight.

Yes not worried too much & no they are all in a row about 5" long :)

I figure it is grams so 40g total as 5,10,5,10,10

Posted

I would prefer to see weights as opposed to not seeing any. I have never had tire mounted that did not need weights. I did notice a balancer or automatic tire machine in rama9 or mityon big bikes.

There is a tire shop on theppasit [pattaya] with a mounting machine that will mount for 30baht. You will need to bring the tire and rim off the bike.

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