Wheel/tyre size conundrum

[Turn7]

I was talking wheels and tyres with someone today, and they made a suggestion that Id like your views on please chaps.

Given my car will be 95% road use, and Im a tightarse, Im struggling with the thousand pound price to buy a new set of 13" wheels and rubber.

It was suggested to me to get rid of the ZV3 tyres, keep the 15" rims and fit a set of Yoko AD08s and see how I get on from there.... Ive driven the older AD07 on Elise' on track ad they were fine, so it seems a very economical way of improving things.

What do you lot think ?

The car is very twitchy and bump steery on the ZV's......

[Glug69]

If you can still get them I'd go for CR500s they are the tyres I've had on my 150 sigma SV for the last 9 years and I've always found them to be excellent, I read your post on Blatchat about handling, the best thing I did to my car when I bought it was to park it on a very flat surface, load the drivers seat with the equivalent weight to me plus I put my girlfriends weight in the passenger seat, then I checked the ride height at the Caterham recommended points, my car had quite a variation in heights so I adjusted the suspension until the fronts were even at 110mm and the backs at 130mm, for road use I've found that to be a very good setup.

[Turn7]

Thanks - I believe CR500's are now discontinued.....

[tomwoodis]

How about buying a secondhand set of 13 inch wheels instead? If you look about you can find sets for £500-£600 with tyres included.

[Glug69]

I wasn't sure as the last time I looked they were still on the Avon Motorsport web site, if they aren't then try the replacement ZZR /ZZS as I've heard they are better.

[CycleSi]

I ran CR500's on my 13" wheels for years and thought they were excellent both on road and track.

However, I then replaced them with ZZS's and they are even better !!!

[Turn7]

Currently very close to buying 888rs on 13 inch cxr rims

What do you guys think of the the Toyos

[HustleRussell]

13" wheels are just the correct size on a Caterham in my opinion.

They aren't going to improve your bump steer though, you'll need to shim your rack to correct that.

[Turn7]

HustleRussell said:

13" wheels are just the correct size on a Caterham in my opinion.

They aren't going to improve your bump steer though, you'll need to shim your rack to correct that.

Agreed, but I wanted to get the basics right before corner weighting and geo...

[Turn7]

In Ph parlance - trigger pulled !!