Kuhmo Ku21 Opinions

[AngryRB]

just bought some KU21's for my r33 235/40 r18's and payed $390 all up,

what are peoples opinions on the ku21?

how do they compare with the ku31? i know the ku21 can be rotated so i can make use of the whole tyre and not throw away when it gets camber wear.

Edited September 1, 2012 by SliverS2

[GTSBoy]

Just make sure when you rotate your tyres that you rotate them side to side so that they preserve the direction of rotation. Once a tyre has bedded in having been driven in only one direction, the belts in the carcasse take a "set". If you reverse the direction, the belts loosen up a little as they set back the other way, and the tyre won't be a strong. It's probably only a smal effect these days, tyre tech being worlds better than it used to be, but it's still a worthwhile principle to follow.

As to the niceness of the KU21. They are a very cheap "performance" tyre. Given you paid almost nothing for them, you have to be happy that they just stay inflated!

[Old Booster]

Yeah that does seem like a Vgood price, where dya-get-um.

[AngryRB]

Just make sure when you rotate your tyres that you rotate them side to side so that they preserve the direction of rotation. Once a tyre has bedded in having been driven in only one direction, the belts in the carcasse take a "set". If you reverse the direction, the belts loosen up a little as they set back the other way, and the tyre won't be a strong. It's probably only a smal effect these days, tyre tech being worlds better than it used to be, but it's still a worthwhile principle to follow.

As to the niceness of the KU21. They are a very cheap "performance" tyre. Given you paid almost nothing for them, you have to be happy that they just stay inflated!

should probably clarify, thats 2 tyres not 4,

they are on the front and replaced some shit "hero's" tyres , to me these tyres are awesome so far

thanks for the tyre rotation tip GTSboy, want these to last a couple of years

got them from bosman tyres company at archerfield, good service took me in straight away and only took 20mins and if your looking for fabrication shop theres one next door that ive heard does good work.

to compare cost the kuhmo21's are 190each , the ku31's i think are double that price, so they will only go on the rear for traction.

[GTSBoy]

KU31s wouldn't want to be too much more. I got 4 KU36s a few weeks ago for $215 each fitted. That was an excellent price, and maybe hard to repeat, but still, it shows you where the pricing is at.

[AngryRB]

are ku36 the best of the kuhmo's? i need some really sticky tyres on the back, second gear refuses to hold traction... need somthing thats not noisy, thats become my pet hate..

Edited September 1, 2012 by SliverS2

[GTSBoy]

Yes, they are the stickiest Kumho. Treadwear rating of 180. They last about 11000km on my R32.

[AngryRB]

gees i hope they last longer than that, but no choice , i was fishtailing at 80km'hr third tonight, scared the shit out of me.

no point having all that power and not putting it down huh.

[GTSBoy]

That's the price you pay for grip. Regularly!

[(OO)SKYLINE(OO)]

just bought some KU21's for my r33 235/40 r18's and payed $390 all up,

what are peoples opinions on the ku21?

how do they compare with the ku31? i know the ku21 can be rotated so i can make use of the whole tyre and not throw away when it gets camber wear.

I had KU21's up the front before.

Kumho rate them to be the same as KU31's but a more comfortable tyre.

Also noticed the tread pattern is less aggressive then a KU31.

are ku36 the best of the kuhmo's? i need some really sticky tyres on the back, second gear refuses to hold traction... need somthing thats not noisy, thats become my pet hate..

KU36's are a budget spec street / track race tyre.

[AngryRB]

awesome rear pic of that GTR32, those guards are on steroids

What tyres pressures are people running with these tyres, the tyre shop pumped them up to 35psi which feels terrible, so ive dropped them down to 28psi to get some comfort back, teins are just not meant for aussie roads......

[GTSBoy]

I run my KU36 at 36-38 psi. Needs it too. They hold on much better at higher pressures.

[(OO)SKYLINE(OO)]

awesome rear pic of that GTR32, those guards are on steroids

Thanks! Found the pic on the internet

What tyres pressures are people running with these tyres, the tyre shop pumped them up to 35psi which feels terrible, so ive dropped them down to 28psi to get some comfort back, teins are just not meant for aussie roads......

I usually pump my tyres up at 34 psi all round.

[AngryRB]

got a price for some rear tyres today, thinking about two options here but unsure

265/35 R18's Kumho ku31's for $265 each fitted and balanced

275/35 R18's Kumho ku21's for $165 each fitted and balanced,

im liking the idea of 275 wide for traction and looks from the rear.. but can i squeeze them inside the guards without looking like a 4wd? ( guards have been rolled already and coilovers, sitting nice and lowish)

current rims are 18X 9.5 30offset

Edited September 12, 2012 by SliverS2

[R31Nismoid]

I've got near new KU31s on my VY SS commodore at the moment. Pretty sure they are 245 all round

They are farken dangerous, wouldn't say I'm a great fan haha

The car is factory and as soon as there is one skerrick of water from the sky or otherwise, traction control is constantly on

So much so that I'm actually turn it off it becomes that annoying. Even rolling on throttle from 40-5km/h it'll turn them

Given I've had 280rwkw in my GTS-R and that was pretty well tamed by RE001... Before next winter i think ill be buying new rubber

[AngryRB]

well thats a spanner in the works, dam tyres.. the tuner loved it though, much better driver than me , he must of layed some black lines 30-40meters long in second,

yeah those SS are very happy in the back end, will be my next car , very good value and competition for me at the drags, they all in the 12-13second bracket.

guess ill get some prices on the RE001's then..

Edited September 12, 2012 by SliverS2

[R31Nismoid]

Well that wasnt a suggestion to go RE001 lol, they are like 6-7 years old now and RE002 are out

Was more the point the KU31 are not that great even on a stock V8 sedan