[ronmanager]

Can anyone tell me what the standard tyre size is on ST24 4 spoke 'turbine' alloys is? I'm away from the car and I need to order some tyres today. I can't remember if the profile is 50 or 55!

Any help appreciated.

Ta

 

[sycoskids]

They are meant to be 50 :L

 

[frembrit]

205/50/16 :L

 

[ADZST24]

205/50/zr/16/87w on my st24

 

[g24]

I have the same st24 turbine wheels, and need new tyres.

Does anyone know if it's safe to run 205/55/16's?
(slightly higher profile)
As this size is tons cheaper (about 20 quid a tyre for pirelli p6000's)

Cheers

 

[magic919]

You can do. I got slight rub on the front - there is a bar supporting the front bumper it rubs on full lock. Looks like a lot of tyre and I went back to 50 profile.

 

[sycoskids]

I had 55 profile tyres on mine when I got it (still got em on the back) and I had no problem with them.

 

[soomo]

i got 50 profile on mine, but as said the difference in price between 50 and 55 profile is about £20+ per corner

 

[g24]

Thanks for the info peeps. I also have the bar on my front bumper - will check the clearance on my current tyres (205/50-16s). I have checked on the tyre calculator at http://www.miata.net/garage/tirecalc.html

and this shows the following details:

Specification Sidewall Radius Diameter Circumference Revs/Mile Difference
205/50-16 4.0in 12.0in 24.1in 75.6in 838 0.0%
205/55-16 4.4in 12.4in 24.9in 78.2in 811 3.4%

So only a small increase in radius - .4 inch.
Will measure the gap between tyre and bar at full lock tonight.

 

[g24]

well, the gap at full lock is just under half an Inch. about .4 of an Inch in fact!

So still not sure whether to risk it. Anyone else running 205/55-16s without them rubbing?

I wonder whether the bars holding the bumper at the front can be moved....?

Cheers

 

[magic919]

It only rubs when you go to full lock. That's hardly a worry.

 

[HJS]

I've got a set of Ghia X alloys to bang on soon, which are the same size. How much difference would running 55 profiles make to speedo accuracy?

 

[magic919]

Per above - 3.4%

 

[lozisbest]

I had 55 profile tyres on mine when I got it (still got em on the back) and I had no problem with them.

Me too :L :L :L :L