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Kumho 711


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 newsuba said:

Talk about a Clayton's slick.

Amazing it got DOT approval.

:o

Wouldnt matter in NZ anyway for racing. It would be classed as a slick under MSNZ regulations:

"(2) All Treaded/ Wet tyres shall;

(a) Have a minimum tread groove depth of 1.5mm across at least three quarters of the

width and around the entire circumference of the tyres road contact surface, unless

otherwise specified in the vehicle class regulations approved by MotorSport NZ, and

(b) Only have grooves added;

(i) As permitted by the tyre manufacturer, and

(ii) That do not extend further into the tyre than the original tread groove depth.

Note: Manufacturers tread depth indicators shall be used to define the minimum tread

depth.

© Have no studs fitted.

(d) Tyres may have additional hand cut grooves provided that the groove depth does not

exceed that of the moulded grooves. Hand cut grooves shall not be considered when

calculating the tread groove area"

Ive not seen them in person, but Im 90% sure I would class them as a slick at any event I was scrutineering for. Of course thats not an issue at any permanent circuit as they are fine there.

But as you say newsuba - DOT approval (which allows them to be used at autocrosses and on the road in the US) is a bit ridiculous!

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Guest boostin

I've used them. Noisy as and short lifespan. Never again....

Oh yeah, they went sideways real easy too. Up to you whether that's a good point or bad. ;D

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 boostin said:

I've used them. Noisy as and short lifespan. Never again....

Oh yeah, they went sideways real easy too. Up to you whether that's a good point or bad. ;D

iv read they have short life span.

Noise aint a factor the car is extremely loud lol

And any tyres the r will go sideways real easy haha

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