Hey fellas,
I can never understand the whole tyre size thing so I'm wondering if a 215/35/19 tyre size will fit my TF magna?
Also, 5 x 114.3 stud pattern is fine isnt it?

THanks
sean

the stud pattern is fine, i think
as long as the rolling diameter hasnt changed or is no bigger than 15mm
if the rolling diameter is larger than 15mm (i'm pretty sure it's 15mm) then your speedo will be out but im unsure by how much
shouldnt be more than about 5km or something like that
oh and you might need to get an engineers report on the new rims

Hey fellas,
I can never understand the whole tyre size thing so I'm wondering if a 215/35/19 tyre size will fit my TF magna?
Also, 5 x 114.3 stud pattern is fine isnt it?

THanks
sean

Do a search as this has been talked about numerous amount of times. Also do a search on
google for tire size calculator. Anyway, it is not recommended to go beyond 2.5%
difference in overall diameter.
Easy way of calculating is as follows:

for a stock 205/65 R15:
(205 x 0.65 x 2) + (15 x 25.4) = 266.5 + 381.0 = 647.5mm
for the 215/35 R19:
(215 x 0.35 x 2) + (19 x 25.4) = 150.5 + 482.6 = 633.1mm

Thats a difference of 14.4mm or in terms of percentage: 14.4 / 647.5 x 100 = 2.22%
However, with that difference, when your speedo indicates 100km/hr, you are actually
doing 97.77 and for every 1000km actually travelled, your odo will add an extra 22.24 km.

A better tyre would be 225/35R19 with an od of 640.1mm and the best tyre for the job
would be 235/35R19 with an od of 647.1mm and I'm sure the latter is very common and
hence would be cheaper than the 225/35R19 or the 215/35 R19.

Also take note that the load rating of the 215 would be be adequate.

235/35/19 - Will keep your rolling diameter pretty darn close!

0.1% difference..

or...

245/35/19 - If you can fit em under there..

1.0% difference..

SuFz :rant: