R32 235/40/18 Yoko S drives

[bazzle]

Needed new tyres so put these on Monday.
Orig were 225 so I fitted 235. After my other mods speedo is spot on at 100kph now

Bazzle

[thezoneR32]

Needed new tyres so put these on Monday.
Orig were 225 so I fitted 235. After my other mods speedo is spot on at 100kph now

Bazzle

The 235's must fill the guards out nicely!

[G-rig]

Needed new tyres so put these on Monday.
Orig were 225 so I fitted 235. After my other mods speedo is spot on at 100kph now

Bazzle

Just wondering why wider tyres would change the speedo, isnt it if the profile is different (ie 40 to 45)? Assume you aren't lowered because i considered getting 235's but pretty sure i'd scrub more with ET45 and 8".

[GTom]

Just wondering why wider tyres would change the speedo, isnt it if the profile is different (ie 40 to 45)? Assume you aren't lowered because i considered getting 235's but pretty sure i'd scrub more with ET45 and 8".

profile is a percentage of the width so 225*.4 gives you the profile height in mm hence 235 *.4 diameter is greater

also have the same size tyres!

[G-rig]

profile is a percentage of the width so 225*.4 gives you the profile height in mm hence 235 *.4 diameter is greater

also have the same size tyres!

Cheers wasn't sure as they are both called '40'.

Sucks how the speedo is still out after adjusting it in Vagcom, but probably a good thing and saves you.

[Greg Roles]

profile is a percentage of the width so 225*.4 gives you the profile height in mm hence 235 *.4 diameter is greater

also have the same size tyres!

Did 235's help the speedo error at all Tom in the 17"?

[bazzle]

Just wondering why wider tyres would change the speedo, isnt it if the profile is different (ie 40 to 45)? Assume you aren't lowered because i considered getting 235's but pretty sure i'd scrub more with ET45 and 8".

http://www.alloywheels.com/tyrecalc.asp

good one and

http://www.miata.net/garage/tirecalc.html

Ratio is a % of width so height increases a little. No rubbing.

Pix here.






Bazzle

[thezoneR32]

Is that stock suspension you're running there bazzle?

[bazzle]

It is

Very happy with the way it performs


Bazzle

[G-rig]

http://www.alloywheels.com/tyrecalc.asp

good one and

http://www.miata.net/garage/tirecalc.html

Ratio is a % of width so height increases a little. No rubbing.

Pix here.

Bazzle

Cheers looks good.

Do you find it helps with getting extra grip going wider, or just the nice feeling of new rubber!?

[GTom]

Did 235's help the speedo error at all Tom in the 17"?

don't know about the 17s, I put new 18's on the car the other week with the 235s...

[Greg Roles]

Of course you did, sorry my bad...

[bazzle]

Cheers looks good.

Do you find it helps with getting extra grip going wider, or just the nice feeling of new rubber!?

That "new" feling. will know after a few weeks ..

Ive had S Drives on my SLK and they were a very clean tyre... ie. no vices, good grip etc.

Bazzle

[FJ Steve]

Bazzle,

How many k ms did you get out of the OEM tyres? And was it all freeway/suburban? or was there some 'spirited' efforts on 'closed' roads?

[smoothcall]

That "new" feling. will know after a few weeks ..

Ive had S Drives on my SLK and they were a very clean tyre... ie. no vices, good grip etc.

Bazzle

Isn't this tyre that finished last in the Evo test a couple of years ago.