I'll be upgrading my wheels soon and was told to buy a set of 15" Pro Race 1.2s.

However I always thought my car would look better with 16" wheels so I can go for a lower profile tyre. I'll be using the car on track as well.

I know the argument against going bigger is that it spoils the handling and acceleration a bit, however if you compare a 15" cyclone with 55 profile tyre it's a total wheel diameter of 49.1cm, and with a 16" Pro Race 1.2 and a 45 profile tyre it's a total wheel diameter of 49.64cm

As the Pro Race weighs a lot less than the Cyclone I'm guessing the wheel should help the car perform better? Especially as the overall wheel diameter hardly changes

Is my logic sound, or will the track day specialists tell me I'm wrong?

Oh and if I do buy 16" Pro Race 1.2s am I going for 7" width? Cheers!

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Light travels faster than sound. That's why some people appear bright until you hear them speak.

16" are more expensive than 15"s for tyres and ronnie Tom wheels around based near me has loads of part worn 15"s and supplies Yokohama 048's and slicks part worn or new, you can get good enough brakes under 15"s aswell hope that helps Lee

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In my garage just now

2003 BMW M3 & 2009 L200 Raging Bull
& Audi Q5 S Line
AX stock rod & Saxo Stock rod
Sold the bike an charged rallye an bought a caravan, midlife crisis or what!

I don't like the ado8's prefer 888's or o48's

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In my garage just now

2003 BMW M3 & 2009 L200 Raging Bull
& Audi Q5 S Line
AX stock rod & Saxo Stock rod
Sold the bike an charged rallye an bought a caravan, midlife crisis or what!

Maybe it's ad 038s I had, what's tread like on them? I can't fault 888's and work out cheaper for me, also 888's work well in the wet

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In my garage just now

2003 BMW M3 & 2009 L200 Raging Bull
& Audi Q5 S Line
AX stock rod & Saxo Stock rod
Sold the bike an charged rallye an bought a caravan, midlife crisis or what!

no, not on a 205 width, depends on the wishbone bushes

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need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

This is a load of shit surely? If 16 inches are so bad what the f*ck are 17s like... 16 inch wheels are not big, nor are 17s, people with focus rss and corsa vxrs do fine with a thin sidewall... at the end of the day I'm getting 807 brembos so I'm going 16 regardless

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Ex- Phase 3 China GTi-6 T-Reg

16s look the best, 17s are too big and make the rear brakes look tiny IMO

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Phase 2 Blaze GTi 6 (Standard) Sold
Phase 3 Supercharged China GTi 6 (249.8 BHP) Sold
Phase 3 Supercharged Diablo GTi 6 (443 BHP)Sold
Nissan 350Z (300 BHP)

yeah and there wheels are 3 inches larger or in the corsas 2 inches... and the corsa is the same weight no?

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Ex- Phase 3 China GTi-6 T-Reg

Ask any automotive engineer and they will tell you big wheels wreck the handling and ride quality of a vehicle, they ONLY reason the fit them is to follow aesthetic trends put in place by designers and supported by customers buying habits. They spend millions designing suspension systems that work well DESPITE having 5-10 kilos of extra unsprung weight hanging off each corner of the car. 15" will perform best and give the brst value for money, however, 16" are'nt much worse performance wise but the tyres are far dearer. Up to you.

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R H Davey Welding Supplies. I sell new and used welding equipment in the Hampshire area. I take on welding jobs in the evenings, ally casting repairs are one of my specialities but I can weld pretty much anything. PM me with your requirements.

Some of my services: (See my for sale threads)
Engine mount/chassis repair
Solid Beam Mounts BACK IN PRODUCTION
Harness bars

Is there much difference in tyre weight between 15-16-17"?

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Team 'unintentional rat look'

Daveyboy I get all that, all I'm saying is that 16's can't be THAT bad, they are only a bit bigger than standard and the sidewalls still not thin,
The relevance of involving a corsa is its roughly the same weight but the wheels are 3 inches bigger than standard 306 ones. So clearly if the ride in a corsa is ok with 18's a six won't have "ruined handling" with wheels one inch bigger and in the grand scheme of things still small.
I'm just trying to bring proportion into it.

Anyway the main thing swaying me towards 16s, other than brakes..., is an increasing lack of good performance tyres in the sixes wheel size. At 16 you have a lot more choice. With a 15s its pe2's or nothing. Don't bother mentioning rs2s, they are like hens teeth.

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Ex- Phase 3 China GTi-6 T-Reg

Are Corsa's renowned for bieng great handlers or drivers cars? If they are it slipped by me and the rest of the motoring world. 16" wheels will be fine, but go too low on the profile and the ride becomes pretty poor, my Rallye came into my posession with 205/40/16 fitted and it was crashy as a bag of chisels. It was streets ahead with 195/45/16 on and as said by others on here would be better again with 15" wheels. I personally think 15" wheels although optimal for acceleration/handling don't suit the car in terms of looks, and 17" make it look like a rollerskate. All mine have had 16" fitted as they IMHO suit it the best, but anything bigger does tend to f*ck up the ride on anything other than billiard table smooth roads (Which I dont see mmuch of in these parts) I would'nt get too hung up on trying to match the rolling radius of 15s unless you are worried about your speedo bieng out.

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R H Davey Welding Supplies. I sell new and used welding equipment in the Hampshire area. I take on welding jobs in the evenings, ally casting repairs are one of my specialities but I can weld pretty much anything. PM me with your requirements.

Some of my services: (See my for sale threads)
Engine mount/chassis repair
Solid Beam Mounts BACK IN PRODUCTION
Harness bars

Yeah I have, about 30 times, best mate has an arctic and it handles well imo and the ride isn't too harsh tbh.

Marco I think the best discs are from a 307 ,If you know where to look you can get 807 brembos pretty easy, nico has the setup in the brake setup thread.
Quote from nicopug:
The best you could choose are 807 V6 calipers with 307 hdi 136hp/307 180hp discs and subaru STI

The discs he used were 302 x 26

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Ex- Phase 3 China GTi-6 T-Reg