tyres are usually wider than rim for proper fit so they will hit/scrub first, i don't recommend tyre stretch for many reasons but

depending on the tyre width and profile they will hit long before the rim does.

 

also you might hit the lower strut perch before the strut body / wheel well.

 

remember even moderate 195 tyres are 7.677 inches wide...

Edited December 16, 200916 yr by styler

well i had 15inch trx rims on there now but the offset is wrong on them,

so i wanted to get the the right rims this time,

ill go the 15x7 and put the rubber from the trx rims there 195x50

i just want to no what would be the right offset for my car since the 16x8 wont fit

cheers sorry bout all this

raff

Edited December 16, 200916 yr by raffs rolla

hey your original offset is +27 or +32 i believe? for older rwd toyota corollas,

you call a tyre shop and ask them nicely to look it up for you :locked:

 

what you want to do is get the same backspacing or close to as your original

rim/tyre combo to avoid scrubbing on the inside and then... widen to the outer

side wheel arch which once the lip rolled still clears... or cut out the lip and flare it :n:

 

thats my method and although it upsets scrub radius aka king pin offset,

its not by much for the smaller increases.

 

get your original rim/tyre combo and measure the backspace off that and then

get another wider rim/tyre combo with the same backspacing but with the

resulting different offset/width to suit.

 

can write up how to measure tyre/rim specs with 2 cheap rulers if you like,

and then its up to your to see how far you can go to the outer rolled or cut and flared

lip if you go that way.

 

note: with same tyre OD rolling diameter you can have slightly less backspacing on the new setup,

you might need to adjust your turning stops and unfortunately theres not much to be adjusted and its

not desirable anyway as it reduces distance to strut tube body, to lower strut perch, to inside

wheel wells and reduces your turning circle but there is a bit to sacrifice if need be.

 

note: else with bigger OD rolling diameter you sacrifice the few mm automatically from bigger OD,

you might have to adjust the turning stops with a reduction of distance to lower strut perch, to inside

wheel wells and reduced turning circle all resulting automatically.

 

definately on the right track with rims that fit properly without spacers

(both hubcentric type spacers or floating type spacers) are not desirable vs proper fitting rims.

 

also track is 25mm increase max for NCOP if it applies to your state which is

25mm/2 rims = 12.5mm a side track increase = original offset subtract 12.5mm = max allowable new offset,

ie the lowest numerical offset figure you can go.

Edited December 16, 200916 yr by styler

we managed to fit a set of 8" wide rims (not sure of offset) under my ke55 for the speed weekend in Bathurst a couple of weeks ago.

One wheel weight was scrubbing on the strut so that had to be pryed off - fairly close fit. SO should be able to fit 7's? to your ke55.

Although the rims we had were 13s and had slicks on them with a lowish sidewall (can't remember specs, sorry).

Might I recommend rolling the guards?

14x7 +8 MA61 wheels with 195/60 (I think) tyres fit perfect on a KE55 (not lowered), never scraped on guards and never hit struts.