Correct Tyre Pressure for 195/15R50

[Lufu]

I am having Falken 195/15R50 tyres, anyone knows what is the correct tyre pressure to pump? Thanks

[Wrxblue]

if you want a comfy ride...then about 30-32psi is just right.

if you going on heavy load or more hard driving then 32-35psi would be good. but prepare for a more bouncy ride.

 

it got to do alot with the tyres you are using too, depending its sidewall is of a soft or hard type and also the profile of your tyres. Lower profile requires higher pressure to ensure the rigidity of the sidewall and to protect the rims. Under-inflating of tyres for low profile tyres is harmful to rims and tyres and also it would not perform well..

 

you tend to get 'understeering' much earlier in a corner and turn-in response would be slower too.

[Unknown_G7]

For me, I'm having 230Kpa for front and 220Kpa for rear!! Not sure whether is it correct pressure?!

[Wrxblue]

what car are you driving?....whats your driving style? as a rough guess..its looks OK!!!!

[Unknown_G7]

I'm driving 1992 Corolla 1.3M! Hmmm, my driving style should be consider normal.

[Wrxblue]

[Guyver]

Me too!! front 230kpa and back 220kpa.... my tyre is 205/50R16...

[Unknown_G7]

So my tyre pressure can be consider acceptable, right!

[Wrxblue]

just make sure you check your tyre pressure at least once a month and maintain the proper tyre pressue to minimise abnormal tyre wear and ensure optimum performance.....

[Unknown_G7]

But mine is only 195/50R15 leh?! Wrong tyre pressure for my car??

[Unknown_G7]

Normally I will check at Caltex petrol kisok weekly after I had washed my car!

[Guyver]

No lah... u must understand that the measure "KPa" is pressure per area.... so doesn't matter the tyre size.... i think!!

 

Probably somebody will comment soon... so just hang on.....

[Wrxblue]

Tyre care and preventive measures

 

 

Inflation Pressure: Incorrect tyre pressure can reduce tyre life and make your vehicle less safe to drive.

 

Under inflation - Low tyre pressure results in excessive wear on the shoulders of the tyre, poor handling, reduced fuel economy and the possibility of blowouts from overheated tyres. If the tyre pressure is excessively low, there is the possibility of wheel deformation and/or tyre separation.

 

Over inflation - High tyre pressure produces a harsh ride, handling problems, excessive wear at the center of the tread and a greater possibility of tyre damage from road hazards.

 

The tyre pressure should be checked only when the tyres are cold i.e. your vehicle is parked for atleast 3 hours and has not been driven for more than 1.5 Km or 1 mile since. Do not bleed or reduce tyre pressure after driving. Be sure to reinstall the tyre inflation valve caps.

 

Road Hazard Damages: Check the tyres regularly for damage such as cuts, splits and cracks occurred while driving due to hard hitting obstacles such as stones, pot holes or ruts in the road. Consult with a technician and have the tyres checked, repaired or replaced.

 

Balancing & Alignment: These are the two most important factors, which help to increase the tyre life and driving comforts.

 

a) Balancing - A balanced tyre is one where mass of the tyre, when mounted on its wheel and the car's axle, is uniformly distributed around the axle (its center of rotation). Balanced tyres can spell the difference between a positive and negative driving experience. An out-of-balance tyre and wheel assembly:

 

Degrades ride quality and driver comfort.

Shortens the life of tyres, bearings, shock absorbers and other suspension components.

 

Sources of Imbalance: Two sources of imbalance occur in tyres; heavy or light spots in the tyre and radial or lateral run-out. Imbalance can also be caused by:

 

Variations within the wheel, such as thickness and different welding point/s.

Rotor and axle imbalances.

 

b) Alignment: For improved overall performance and extended tyre tread life under various driving conditions and speeds, it is imperative that the tyres be in proper alignment with the vehicle. Poor and improper alignment occurs when the suspension and steering systems are not adjusted. For most vehicles, poor alignment results in excessive and/or uneven tyre wear. Improper alignment can reduce a tyre's life by more than 70 %. Before taking any alignment measurements, check the following:

 

Proper inflation of each tyre: Pressure over or under recommended levels will affect some alignment measurements.

 

Rotation: Before rotating tyres, respective vehicle's owner manual should always be consulted for rotation recommendations for specific vehicles. Recommended at every 10,000 Kms. or at any sign of uneven wear, tyre rotation balances tyre wear to increase overall tread life.

[Wrxblue]

the load on your tyres and the profile of the tyre would determine the pressure needed. check with your vehicle hand book for the correct pressure...if you have changed to an aftermarket size....then it would be trial and error..but in general...the pressure I gave in my first posting should be OK...

[Lufu]

if you want a comfy ride...then about 30-32psi is just right.

if you going on heavy load or more hard driving then 32-35psi would be good. but prepare for a more bouncy ride.

 

it got to do alot with the tyres you are using too, depending its sidewall is of a soft or hard type and also the profile of your tyres. Lower profile requires higher pressure to ensure the rigidity of the sidewall and to protect the rims. Under-inflating of tyres for low profile tyres is harmful to rims and tyres and also it would not perform well..

 

you tend to get 'understeering' much earlier in a corner and turn-in response would be slower too.

 

mine is a Lancer, low profile tyre. So does it means low profile tyre must use 32-35psi?

 

Thanks

[Wrxblue]

depending on your usage....if normal driving it is still ok ot use 30-32psi..but if u tend to drive hard..then it is recommended to up the pressure by 1-2 psi...

:)

[Guyver]

Thanks!! the handbook says about 210 to 220kpa for 160km/h travelling as the norm...