18 replies to this topic

[Matteo21]

Hello I would like to know size tyre for the front (only 17" rims) Rear Size (225/45 R17): 195/45 - 205/45 - 215/45. there are problems with the abs? I use the car in the street and on the track. best regards

Edited by Matteo21, 11 February 2013 - 10:58 PM.

[anz3001]

Assuming you have a wide enough rim i'd suggest the best size would be 205/40X17 (fit/cost/availablity), Not sure how the ABS will be effected

[Crabash]

If you have no probs with ABS now and you stick as close as possible to original circ. you should be ok http://www.miata.net...e/tirecalc.html

[christhegasman]

So you mean you have rear wheels on the front ? If so on an NA use 205/40 If its a tubby I understand 215/40 will be ok Both standard rims

[Matteo21]

I will buy a new fornt rims 7,5 x 17 the calculation of rotation, front rims 175/55 r17 on new front rims 205/45 r17 is 1,3% perfect the calculation of rotation, front rims 175/55 r17 on new front rims 205/40 r17 is 4.6% the limit is 5% this solution is bad??? I want to mount the bridgestone S001 or adrenalin But how to calculate between rims front and rear rims for ABS?

[christhegasman]

Or just fit what you want and disconnect the abs It's crap anyway But to be honest not had any issues with 205/40 on mine and abs is still in play

[alexb]

From what I understand the ABS unit that was first used on the NA was not able to handle certain differences from front to back. It was programmed for the standard rims/tires and couldn't handle other combinations with different radii very well. My ABS is 'upgraded', which I guess means that it was changed for a later model. At least it has a very large white dot on it, indicating that someone just had some fun with a brush, or that the unit was actually changed. I never had any problems and I'm on 18", 215/40 front and 235/40 back. Front is 0.8% larger than original, back 3.3%. Like a said, no problem with the ABS unit I have.

[LY_Scott]

175/55/17 HTH

[Matteo21]

thx all My Car is 2002 year, I do not know if it has been updated on the unit, I called vauxhall have confirmed that I do not have to do any update. your size installed? that tires fitted? brand favorite?

[Silent Steve]

Or just fit what you want and disconnect the abs
It's crap anyway
But to be honest not had any issues with 205/40 on mine and abs is still in play

Interested in your experience of this...Does this make the steering significantly heavier, or the handling more twitchy? I assume they used the 175s to introduce an element of nice safe understeer?

[christhegasman]

Or just fit what you want and disconnect the abs
It's crap anyway
But to be honest not had any issues with 205/40 on mine and abs is still in play

Interested in your experience of this...Does this make the steering significantly heavier, or the handling more twitchy? I assume they used the 175s to introduce an element of nice safe understeer?

i have 205 tyres on the front fitted to rear size rims these work fine I don't notice any difference in steering weight and the car feels better planted on turn in but that could be the Bridgestone on the original rims were getting old
I do think it may be tempted to follow white lines a bit more but that could also be in my mind as I have been on this set up for a year or so now

[JG]

175/55/17

HTH

:P/>

Controversial

[Crabash]

Front to rear calc don't matter if the rears are staying standard, only new fronts to old fronts. But if you really want to know just use the same calculator with 225/45/17 against 175/55/17, 205/45/17, 205/40/17, etc I think 205/40/17 are too small but I never tried them and many people say they have no issues. There again many do have issues with ABS on all sorts of tyre sizes. I am on 215/45/17 and 245/40/17 and have no ABS issues. I selected those sizes because they worked out as close as I could get to original front rear ratio, worked for me.

Edited by Crabash, 12 February 2013 - 01:14 PM.

[LY_Scott]

175/55/17

HTH

:P/>

Controversial

Thanks, just thought I'd put it out there!

[Matteo21]

For 200hp is perfect 215/45/17 and 245/40/17 , for me 152hp is very big tyre :-) only solution is 205/45 r17 with street tyre, becouse racing tyre dont existe in 205/45 17r :-) correct

[Crabash]

Yokohama AD08 Advan Neova are available. But there is more choice in the 205/40 yes.

Edited by Crabash, 12 February 2013 - 03:57 PM.

[Matteo21]

Good Tyre Advan Neova AD08, i buy this tyre thx

[Phear]

215 front and 235 rear will fit on standard 17" rears and are available in R888 and Kuhmo V70A.

[Matteo21]

Thx all for information