My wira 1.5GLI is pump 210 kpa for 13" inches tyre, i had change to 15" tyre last few weeks.
Then how many kpa is suitable for my current 195/50/15 tyre?

My Saga 15" I pump 280kpa.... my dad's Nissan Livina 240kpa.... I also dunno which 1 is correct or wrong .... Maybe both also wrong Juz make sure not 2 pump 2 hard, cuz may loose traction n not 2 soft cuz may cause wear n tear faster

not sure about KPA; but normally i pump around 32psi.

from the pic; tat should be around 221kpa

a normal 195/50;55 series max is up 50PSI only.

but no body is crzy enough to put so much

when u pump 32psi into a cold tire; when it gets warm up u should be getting around 35-36psi or even higher



This post has been edited by moon*: Dec 27 2008, 11:29 PM

1psi= 6.9kpa

my parents pump 25-28psi

i pump 30-33 psi

dont know how much is the kpa, never see.

280kpa seem too high already.
How to determine it was to hard?

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Added on December 27, 2008, 11:49 pmThanks for your board and nice SWATCH watch
195/50;55 series max is up 50PSI, then the accurate psi is..?

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Added on December 27, 2008, 11:51 pmMany tyres shop offer cold tyre air...


This post has been edited by cwd8769: Dec 27 2008, 11:51 PM

lol.. dont ever try filling 50psi

even 40 is killer liau.

when to know when u over fill ah. have u tried 38psi b4?? LOL. try putting 38psi n going over the yellow lines on the road; the car will rattle like mad.

keep it within 30-34; u feel more comfortable.

My standard 13" got once tried pump 300kpa, ezy wheel spin n wheel lock I pump 280kpa cuz I dun 1 my tires 2 wear n tear very fast... Cuz if below 280kpa, my car tyre will look like lack of air pressure n very hard 2 turn... especially 3 point turn No Power Steering Assist lor

mine 14 inches, pump to 210kpa, around 31psi i think, as recommended by the tyre shop fella...

My Wira, 1.5GL with the stock tire, I normally pump 31psi for the front and 29psi for the rear

30-32psi is good for 195/50/r15...

Depends on driving style and sidewall stiffness..
comfort + soft sidewall (falken 912, conti cc1, nct5) ~32 psi
handling wise + soft sidewall can go 36psi
handling + hard sidewall (mich PP2) ~32 enough

:no: Over-inflation causes uneven tire wear too. Best is to be fairly within your car/tire manufacturer recommended pressure.

280 is too much la bro ... normally 15 inch pumped around 210 - 220 is the best already ...if want to go more .. 10% of it would be the safe spot ..

or else your tyre would end up

300kpa?? Wao....too hard

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Added on December 28, 2008, 9:26 amTyre shop is recommence this standard for me too.
It's not depend what tyre just depend on our favour?

No matter motorcycle or car?

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Added on December 28, 2008, 9:28 amYes, i use mich PP2 195/50 15 now


This post has been edited by cwd8769: Dec 28 2008, 09:28 AM

ooo.... icic

Thanks 4 da info...

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Added on December 28, 2008, 9:45 amMaybe I will reduce my pressure to 240 kpa la.... cuz if 200 kpa, my car will feel sluggish n slow... Bout da pic, I pelik cuz my previous 13" I pump around 280-300 kpa also but da side wear n tear faster thn da middle Maybe its my driving style lor... crazy driver Until my tire begin 2 crack, I reduce to 250-260 kpa.... Thn change 2 dis 15"

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Added on December 28, 2008, 9:51 amYa lor... dat time wuz stupid n noob... I juz pump n test out by punching da tires... No wonder my tires lack of grip... Now I better take care my new 15"

This post has been edited by rozz_1291: Dec 28 2008, 09:51 AM

good info...

Now i stick on 220kpa.

I just don't understand, there was no standard for different tyre air pressure it just depend on user favour.

yeap... depends on user favour as long as within the allowed specifications... ride comfort and handling performance varies with tyre pressure...

it is pressute of the tire . many ppl misunderstood that the pressure = volume . for 15" or 17" the 210kpa is the same for both , the volume is different only . when u pump , the pressure actually react with the outside air pressure , that is why just stil to 210 is the best.

just stick to 210-220 is the best one .