hi

what et would i need to clear standard subaru four pots on a classic

would 50 be ok ??
i know stud pattern needs to be 100, what else is there that i need to know ??

cheers phil

 

phil,

Short story is Yes & No

IIRC classics with 17" x 7.5" et 48-52 with 205-215 tyres will be OK.

IIRC 16" clear standard 4pots!!

Getting the correct ET will ensure the tyre doesn't rub either wings/rear strut or foul inner wing on lock

IIRC newage brembo's were the problem and not classic brembo 4 pots

ET "X" or "Y" This really determines the the offset from cente of the wheel to the flush face thats bolted to your hub. So does not necessary mean it will clear a certain brake caliper.

Long story, i'll try and explain it and I'm sorry no expert

As you know there are 5 considerations for wheels,

Dia eg. 17"
wheel width eg. 7.5"J
et eg. ET50

Tyre width eg 205mm

PCD eg 100 only effects if the wheel stud pattern is the same



ET "X" or "Y" . This really determines the the offset from cente of the wheel to the flush face thats bolted to your hub. so an ET0 is smack in the centre.
The higher ET the tyre will get closer to the Strut and the lower the ET it will get closer to the wing.

Changing ET on some brands of wheels can help them to miss but at risk of rubbing

Below are approximate example and not true measurements, tyre overall widths and rolling radius are effected by what width wheel they are fitted on.

18"x7.5 ET45 wheel 225 tyre eg. misses the wing with 8mm clearence
18"X8 ET45 wheel 225 tyre eg. misses the wing with 1mm clearence
18"x7.5 ET52 wheel 225 tyre eg. misses the wing with 8mm clearence
18"X8 ET45 wheel 215 tyre eg. misses the wing with 6mm clearence

as you see getting the the correct tyre size

just to put another one into the mix

For instance on Brembo's some eg. 17 x 7.5J and ET 48 will clear brembo's and others with the same Dimension won't. this is due to their spoke pattern.

Hope this helps than confuses, this is why most don't like to comment as wheels are expensive and a lot of peeps, like me, who think they know it all and don't

Flame suit on

Tony

 

i asked for that...lol

so would 5 x 100 , et50 ,7.5 x 17 with 205 x 40 be ok ???

or will they rub??

 

anyone???

 

I would say it will be OK - but experience teaches that the best idea is to check

 

you see why peeps won't post on this thread all pain and no gain


I will agree with ami the sizes you mention are normally OK for Classics

IRRC IMHO but all depends on the wheel


Tony

 

All dependent on wheel/spoke design

 

sorry people would a 18" rim with an ET50 fit under a classic without rubbing?

what tyre size would i need

cheers

 

Steve if you look on Home | Subaru (UK) Ltd Official Website and look in accessaries/ wheels look for P1 wheels 18"s I think they used to say the size and what ET they are.

IIRC they were about 215x35x18 and wheels 18"x7.5" ET53 but sorry not certain memory of a goldfish. Try the P1 owners club

Tony