Correct tyre size for a 98 Chim with PAS?

[mojorider]

What should the correct tyre size be for my front and rear tyres. My fronts are 205/55/15, I think this is wrong?

[zippy500]

I think they may be 225's

[Corin Denton]

Fronts either 205/60x15 or 225/50x16.

[gideonr]

What should the correct tyre size be for my front and rear tyres. My fronts are 205/55/15, I think this is wrong?

Same situation with mine (96 Chimaera), the 205/55/15s seem to work OK, but I've seen 225/55/15s recommended elsewhere.
Would changing to 225s upset anything?

BTW rears should be 225/50/16 I believe.

[kempster]

My 99 Chim 450 (with PAS) has 205's front and 225's rear - but sure I've seen threads with 225's/245's??!! Does it depend on wheel type (Chim or Griff)???