What wheel and tyre size combinations do Tiger recomend ? what have people got on their Avons ? and what offset should they be ?

Ive spotted some 16" wheels on ebay I like the look of, it just says Ford fitment though, so this will just be correct PCD I imagine.

Thanks

James

I think they recommend 15s but 16s will fit.

Adam

I put 17" OZ Turismo's with 205/40 tyres.Look well and fill arches.Can check offset later if you want.Over all diameter is only something like .5" more than standard sierra wheels.

Do you have any pics ?

Thanks

James

You have to be careful with the width and offset of wheels and tyres you fit to an Avon.
You will probably find that one rear arch is wider than the other by up to 1" and hence the wheel could protrude past the arch on the narrow side.
I have bought 7" X 15" wheels with an offset of ET35 with 195/50 X 15 tyres and when I temporarily fitted them to my Avon I had this problem. Looks like I will have to widen the arches.

i would put a picture of the car on as an avatar if i knew how

you can add it in your profile
Tim

ref:tyres and wheels
my tyres are 195x50x15 yokohama a539's and the wheels are 7x15 bk racing bk604(model number) i think the pcd was 108 and the offset was either et 35 or et36 (but im 95% sure it is et36)[but could be et35] but with this wheel arrangement the suspention has been raised a bit as the tyres scuff the arch when the car hits a bump.and with a bigger et number youll then get into the problem at the front end with the cycle wings against the body work when your turning the wheels as youll need longer stand offs for the brackets putting the inside of the bracket closer to the body.so its a bit of a compramise for size at the end of the day. there are pictures in my archive if anybody wants to see how it looks.

17" oz tourismo's on tiger cat with an et37 offset.no scraping touching,rubbing at all.look brilliant.will photograph and use as avatar as soon as i learn how.

Pics of my 17's in my archive.
Tim

Thanks guys, Ive been sifting through most of your photo archives !

Sorry for bringing up a bit of a 'Max Powery' subject, but I just needed to know. I cant stand cars with odd looking wheels and dodgy offsets.

It may also be useful to others that are building Avons.

Thanks

James

james,

hi.

i have some brand new, lightweight (6.3 kg) 6 X14 compomotive wheels advertised in the 'for sale' section for £384. they are ford fitment (108 pcd and et 33 offset) and are fitted with brand new 185 60 14 yokohama A539s.

the wheels will be about 8-10 kg lighter than 15s, plus you will save weight on the tyres. this is unsprung weight we're talking about, so your suspension will respond more quickly. also, your rotational inertia will be reduced on a smaller/lighter wheel, so your brakes will work better. finally, the gyroscopic effect is also reduced on a smaller/lighter wheel, which vastly improves the steering response.

you're looking @ circa 48 kg total, for 4 wheels and tyres. that's against 80 kg for 4 17" wheels with 205 40 17 tyres. that's a saving of 32 kg of unsprung weight.

there are so many benefits with fitting smaller/lighter wheels, you'd have to be crazy to go for massive bling bling rims and ultra low profiles. these cars aren't exactly pimp fodder anyway, so why go for the bigger wheels?

the 185 tyres will give you plenty of footprint for a car weighing 500 kg, even 175s or 165s are plenty. again, look at what the caterham R500s run. you will reduce tramlining with a narrower tyre and substantially decrease the chances of aquaplaning. (light car + wide tyres + water = trouble). the 60 profile is a much more comfortable arrangement, off track, than a 50 or 40 profile. these cars run on 16 - 18 psi anyway, so there's no need for the super rigid tyre wall you get with the low and ultra low prifile tyres. you actually want some flexibility in the tyre wall, as these types of car generally have a harder suspension and stiffer chassis than a tin top.

sorry for the lecture. hope that clears up a few things.

regards,

dom.