Tuesday, March 5, 2013

NZ Roads Hard On Performance Tyres!

I need two new tyres for my Lancer VRX Sportback AGAIN!!

My work colleague Nigel Roper took this picture of me and my "new" VRX the day I got it.  It was 21/12/2010 – 11:41 AM :)  The Lancer already clocked 10,050 Km when I bought it, because of that I got a whooping big discount for it ;)

On 23/08/2011 my VRX hit 21,722 km, this was when I noticed the two front tyres are badly worn!!

In effect, these "man size" 18" Yokohama Advan Sport Tyres only lasted 21,000 km!!

I kicked up a fuss with the distributor, they however reckoned that the Yoko should last much longer than that!  That was when I enlarged the above photo of the front tyre...

As you can see, the front Yoko was already half worn at 10,000 km!

Sensing my dissatisfaction, I was offered two NEW Yoko at a heavily discounted  price!  I left happy :)

The new Yokohama A10A 215/45R18!

The Yokohama Advan Sport, according to Yoko...

- Asymmetrical tread pattern
- Racing technology
- Advanced construction design
- Exclusive rubber compound

- Superb cornering capabilities
- High speed stability; capable of speeds over 300km/h
- Strong grip levels on wet surfaces
- Superior balance of sports and comfort performance

I agreed, it is a great tyre; when it is still NEW!

As it approached 20,000 km, it became really harsh and at slower speed the tyre twitch nervously.

In the mean time, my car clocked 42,600 and the rear Yokos were replaced, this time I decided on Hankook Ventus S1 Evo K107! More on the Hankook later.

Yesterday, at 50,092 km the two front Yoko are ditched...

History repeat itself... the Yoko after 28,370 km (50,092-21,722) Not that bad really! Better than the first sets!

Anyway, after THREE sets (SIX pieces) of Yokohama; I decided to go full Hankook.

This is what I read about the Hankook for my VRX...

The concept of Hankook Ventus S1 evo addresses the needs of owners of very fast high-performance cars and luxury vehicles that demand uncompromisingly sporty performance across all parameters, without having to dispense with attributes such as suspension comfort or low tyre noise. 

As usual, Hankook’s developing engineers focused primarily on the safety criteria of handling properties, high grip and braking performance. Therefore, the use and development of the highly dispersible silica tread compound, which was used for the first time ever in creating the Ventus S1 evo, was a high priority. 

A new mixing process ensured a significantly higher silica enrichment level in the tread compound as well as an improved filler dispersion, which guarantees grip in the wet and at the same time enhances rolling resistance.

Its asymmetrical tread design with the characteristic massive circular tread rib built into the outer profile ensures exact steering feedback for a very precise handling even at highest speed. In combination with a new concept sidewall profile, the closed design outer shoulder allows for maximum power transmission during cornering and exact steering feedback. 

Broad outer wave-form straight tread grooves effectively drain water and thus provide safety, even on wet streets. A balanced surface contact pressure and power transmission for precise handling even at high speeds as well as optimized braking performance are enabled by Ventus S1 evo’s K107 stiff steel belt package in combination with its high-density zero-degree nylon belt.

 The deep wave-form straight tread grooves of the Hankook S1 Evo effectively drain water from really wet road. This tyre has done 7,200 km on the rear of the VRX.

The two spanking new Hankook are fitted to the rear.

Initial impression of these Korean made high performance tyres are very favorable, I immediately notice they are much less road noise and they absorb bumps better than the Yoko.  I will monitor how well they wear out.

Famous Last Words...

New Zealand roads are killer for high performance tyres!  A lot of the road have very rough and abrasive surfaces, it is a wonder the high performance Yokohama with relatively soft compound can last at all!

A typical New Zealand road with rough stone chips sitting on top of bitumen.

Close-up of the road surface of a typical New Zealand road, good luck to your performance tyres, how long do you think they will last?


Simon Gotlieb said...

You think the roads are hard on car tyres? Try getting a maximum of 11,000 kms out of a set of motorcycle tyres! I go through two sets a year CY - and it's over $600 a set!

heather said...

I notice that when roads are resealed, the seal is quite rough.. rougher than it used to be.Maybe it lasts longer that way