Hi could anyone let me know if these wheels will fit my 2006 sport it hasn't got brembo brakes the tyres are
255/55/20 and mine are 255/50/19 also will the difference in size effect my speedo
Thanks
Cosmo

Have you got those numbers the right way around? The tyres on the 20" wheels will be too big! They might fit under the arches, but will put your speedo and odometer out by quite a lot, as well as putting more strain on the engine, gearbox, CV joints, diff's etc etc

From memory, an easy way to calculate sizes is as follows:

To go plus 1 (+1) say from a 19" to 20" wheel, with the same width rim, you just reduce the profile by 1 unit.
e.g. 255/50/19 becomes 255/45/20

Easy, but a little more faff involved in changing widths too

Here's a good page where you can 'try' different wheel and tyre sizes: http://www.wheel-size.com/calc/?wheel1=255...amp;sr=0mm