PS4 should be superior.

Yokohama Advan Apex V601 strong points are more affordable, dry grip & low noise.

This tire is much cheaper than Falken Azenis FK510. FK510 strong points are wet grip & aquaplaning resistance.

Hi I'm using 185 55 15 tyres and I usually pump it up with 250kpa, is this too much and will over inflate the tyres? Bcs on Google it says should pump 220kpa?

Primacy 4 grooves are like small streams, PS4 is like the Congo River
Perhaps thats why

depend car weight + urs (sorry hehe)

Maximum pressure permitted by tyre manufacturers are always embossed/printed on the external sidewall of any tyre.

Yours is likely 350 kpa MAXIMUM, which hasn't been breached with a 250kpa!

220kpa is the minimum tyre pressure recommended by your car manufacturer for its specific design load. This design load is well below that of a 250kpa load rating.

This is not over-inflation per se, as far as the tyre is concerned.

I would say there is tyre over-pressure for the vehicle design load, which technically is harmless and NOT 'dangerous' as often expounded.

Internet has been confusing and misleading in interpreting 'tyre' Over Inflation and/or 'vehicle load' Over Inflation.

This post has been edited by zeng: Mar 11 2023, 09:57 AM

Thank you explaining everything.

also temperatures. bila hot akan kembang dikit 10~15kpa.

boss, is there any brand manufacturer got announce their tyre weights as advantage?

interesting, the Yokohama Advan Apex V601 sounds more like a competitor to the Bridgestone Potenza RE004, but looking at the V601 tread pattern, kinda hard to imagine it has low noise

Falken Azenis FK510 is good, according to a friend of mine, driven his car as well, feels good

I'm curious on the new Yokohama Advan Sport V107 as well

my understeer experience with Primacy 4 does not happen in aquaplaning, just pure damp road surface

of course, Primacy 4 very easy goes into aquaplaning when hitting puddle of water

quite common in Europe/US.

https://www.kaltire.com/en/tires/hakkapelii...-r5/359176.html

you can see the tire weight included in the specs

I am driving axia 2019.

i used original tires and need to change them soon.

depth is 4mm.

some say i need to change at 3mm. some say go around 1.6mm.

i am looking at conti cc6. but now cc7 is coming. slightly improve.

got 1 shop in kepong offer me 170 for cc7 ea.

also looking at another brand.

any recomendations?

Depth at 4mm is fairly good, almost 50% of your original tread depth.

I would not change it if I were you. Change around 2-3mm still more reasonable but do be aware of the drawbacks.

What is your main requirements?

CC7 more for comfort while XM2+ has good wear & wet balance.

my main requirement: grip (dry/wet)

noise ratio: dont mind

which one has an optimum tear and wear?

Michelin XM2+ would be best for you.

hope cc7 improve from their cc6's aquaplanning main issue..

we should upgrade mc6 and higher grades for that

would you recommend changing if tyre is old (>3yrs on road), but rarely driven? long way to go before botak
so far didnt notice drying or cracking

and if say I want to change, got recommend quiet tyre?
not that important on grip, since rarely go above 120km
currently using primacy 4 and its very good for me

No, 3 years is still fairly young. A tire should be able to do at least 10 years.


Primacy 4 is definitely the top grip + comfort tire. Depending on your size Continental's Comfort Contact 7 would be ideal but lacks the grip power of Primacy 4.

I see, tyre shop trying to convince me after 3-4yrs better change...