Qick Tyre Question

[850 Turbo Hearse]

I have an 850r with the standard 17's on it- will 215/ 45s fit without rubbing/ bursting catastrophically at speed?

thanks in advance,
Nervy.

[Eddy T]

I'm running 225 35 18 on a lowered car with no problems so you should be ok. Hope this helps.

[Alan M]

215-45-17 are the standard fit items anyway aren't they?

[850 Turbo Hearse]

well, on mine at the mo are 205's, Id assumed they were standard.

forgive me, if Im doing this right, then then 205 is the footprint, and the 35/ 45 is the percentage of that footprint in tyre wall- in which case my tyres (the new ones) will be 96mm whereas eddys will be 78, meaning mine are taller, so may not fit? or am I way off?

[Redbrick]

205's were standard fit on the 850R's- I ended up on 215's.

Use this useful website to see what difference it will make running 215's:

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

[850 Turbo Hearse]

neat site, thanks.

So, according to that- and you- I'll be okay with them?

[Ron@iPd]

From my notes I show that a 215 is the widest tire you can fit on there without issues. Naturally many have gone much wider but that is my .02. Here are my notes:

The 850 is limited to a 215 maximum section width due to restrictive plastic fender liners. 215-55-16”, 215-45-17” and 215-40-18” are popular upgrades.

[850 Turbo Hearse]

From my notes I show that a 215 is the widest tire you can fit on there without issues. Naturally many have gone much wider but that is my .02. Here are my notes:

The 850 is limited to a 215 maximum section width due to restrictive plastic fender liners. 215-55-16”, 215-45-17” and 215-40-18” are popular upgrades.

so, Im ok? Cool. I only ask as there already appears to be some scuffing of the inner arch plastic with the 205s.

[nathT5]

i,m getting a set of 215x45x17s when i get the alloys refurbed,
ive looked at a tyre size calculator and they are 2% bigger than standard, thats ok,
also it should make the ride nicer with a bit more rubber, and the gearing slightly longer,
mines currently running 205x40x17, too hard and way under-geared, just wants to spin up,

do it.

[850 Turbo Hearse]

do it.

Ok, I'll be blaming you though when i go down in a blaze of thick black smoke- I hope you know that.

:D

[nathT5]

Ok, I'll be blaming you though when i go down in a blaze of thick black smoke- I hope you know that.

:D

ok pal,
but i,m fitting the same and mines lowered, may have to fiddle with some 5mm spacers too.

[t5 pete]

I hope they will fit ive just bought a set of michelin's 215/40/17 for £420 so if they dont ill make them fit

[irf]

I hope they will fit ive just bought a set of michelin's 215/40/17 for £420 so if they dont ill make them fit

what i've got on mine. they fit fine don't worry.

215/45/17s will also fit without problem afaik.

[t5 pete]

cheers pal has any one experinced any probs with tyres? ages ago i put a set of stunner tyres on my car and the walls started to crack and didnt last me 3000 miles

[nathT5]

cheers pal has any one experinced any probs with tyres? ages ago i put a set of stunner tyres on my car and the walls started to crack and didnt last me 3000 miles


the budget fronts on mine are fairly new but have splits around the inside sidewalls,
never seen this before and i was a tyre fitter for 10 years...

[t5 pete]

Thats exactilaly what happend to myne thats why i only buy michelin now i know there dear but they last and i work all hours of the day to pay for them

[850 Turbo Hearse]

thanks boys, really appreciate your time :)