QUOTE(davidke20 @ Aug 27 2014, 12:56 AM)
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Dude, u seemed misunderstood the meaning of those speed rating. H for maximum speed of 200kph. Meaning that, under maximum ideal tyre pressure, ideal weight, ideal vehicle power, ideal vehicle balancing, sufficient engine output, well balanced drive train, and a decent experienced driver, that bloody tyre is capable of 200kph at a maximum yet safe level.
On a contrary, my Shawie despite loaded with a type V, doesn't mean I'm capable of 240kph as per spec. Reason being, according to dyno my speedo meter can only clock 170kph where it rev cut me! Worst is, on a power run, the roller told me another story, during my 4th gear red line fuel cut, I only managed to achieved 139kph & 60whp. Seriously WTF to the max. Given the stock suspension in car, and an injured torsion beam(previously rear wheel cabut, the whole driver side of the torsion beam was grinding on the asphalt for several KM without brake). Steering rod that has freeplay up to a thumb size. Front sway bar drop link that is loosen, and hardened sway bar mounting. Not forget before today, the powersteering sensor is still leaking a pint in a week. So, does it mean I HAVE TO get my car to 240kph just to prove that the bloody speed rating are up to spec? I think before 180 my little Shawie ady flipped over/engine blow.
I know u worship YOKO and brand conscious. Your CC5 doesn't feel the road during 180kph is normal geh. I had that when I peed at PEDAS during Melaka TT, and I catch up u guys with that speed FLOATING all the way. Ask yourself, does the tayar explode during your 200kph run? Does your tayar change shape when you pass 200kph? The answer is, NO. The lively prove is, you're still in 1 piece. Want an ultimatum? Get a speed rating Z tyres. It's exactly the same spec as type V, which is 240kph. The only difference is, V rating maximum speed is UP TO 240kph. Whereas Z rating, it can EXCESS 240kph, and there aren't any source to define the maximum speed for such kinda tayar. You can bring out W rating or X rating, which up to 300kph. Still, the type Z says I'm possible to surpass that 300kph and nobody knows


QUOTE(dares @ Aug 27 2014, 01:45 AM)
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The speed ratings indicate the maximum speed the tire can go under ideal/controlled conditions, without experiencing structural failure due to stress and heat (ie, explode).
It doesn't tell you how fast you can go before you feel like sampan.
well, the ideal conditions are of anyone's guess. and for the record i did them on straight road/stock car condition with pretty much stock tire pressure.
unless Proton messed up on what's ideal for the tire, then that's another story entirely.
and controlled conditions would refer to what? on a dyno ramp? imho public roads (especially in Malaysia) aren't controlled conditions at all.
Point being, ratings are there as a guideline, not a definitive indication of how the tires can do.
in fact not too long ago i've had a debate on TWI on the tire forums which ended in mostly an agree to disagree fashion (many notable points i must say).
although yes the tires obviously didn't fail/explode and i'm still alive today posting this very post.
davidke20 no you don't have to prove anything; in fact my post was merely to poke fun of how tire ratings can be very misleading (even from Yokohama or any other major brands)
Driving safely is more important after all, right? (yes i know, not convincing coming from me and all)
i mean, 360 TWI is supposed to be damn long lasting right? Well this is my CC5 after 11k km
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granted, many users did report that their cc5 are very capable of 30-50k ++ km's.
in fact i had just met a customer at
nestum 's place that replaced his set of cc5 after over 50k-60k km of primarily long distance highway usage.
and while it may seem unconvincing of myself to say that i don't particularly worship Yokohama (or any brand in particular), i happen to get most of my tires being Yokohama considering who i deal with for the most part. I get good pricing and most of the time in comparison of similar models of the tires
nestum carries are not as attractive maybe because of pricing difference as he carries Yokohama more and maybe he get better dealer pricing with higher sales volume (the shop sign boards is a give away, no?)
Had i deal with other tire shops, i probably would be using other brands and you'd probably call me out for worshiping other brands and quite honestly i just find that very annoying. (which i get that vibe all the time in a particular thread unfortunately)
hell, i wanted to give a shot to BS RE-11A but to my dismay even Singapore distro do not carry them and the ones floating in SG market are all grey import (yes i've called Singapore Bridgestone directly)
What about Dunlop/BF goodrich? I know Dunlop's being carried by a particular motorsport shop in Sunway (need i say more? lol)
And BF goodrich is kinda non existent here.
(if you guys have lobang though do let me know)
Then there's Hankook RS-3
I've heard GREAT reviews from it and most feedback that it's even gripper on dry than the Yokohama AD08R
however, it's generally more expensive than the AD08R, and it last only half as much mileage/track days in comparison. (technically double the cost if you need 2 sets of tires for the same mileage/amount of track days)
even some of my inspira friends mentioned roughly "Korean tire more expensive than Japanese tire? wan meh?!" (i know, country/branding stereotyping isn't good, but hey it's not like i'm not being given the same treatment as we speak right?)
so where do i turn to in the end by process of elimination? There you have it.
Motorsport in Malaysia is still in a very sad state ever since i've begin to get involved in it, and until today i still don't see the light at the end of the tunnel