I've got them on now Martin, it was the 18's I had on before.
The 17's are 45 profile.
There's a massive difference in rolling diameter compared to smaller stuff on 17"s as this pic shows! I appreciate 225/45's wouldn't be the norm for most looking at a road car tire for bigger wheels on a 3dr.



Got a bit of a shock when I offered them up for sure. Go well though.

Generally I've never had good experiences going too big on wheel diameter and compensating with lower profile tires for road cars. Preferred my Integrale on 15's compared to 16's; Preferred my wife's Impreza STI on 17's compared to my Forester STI (on same suspension) on 18's, (infuriating), and prefer my Mrs' M3 on 18's compared to 19's. Perhaps it's not that I'm getting old - I must have been old all along! All were acceptable on bigger wheel, lower profile options, but not as good compared to the smaller options.

That said I prefer the characteristics of my current 17's compared to the compo splits (16's) that I started with, but I think the tires are simply a fair bit better, and it's purpose has changed considerably since then!

One word of caution if running comp struts, depending on offset you can end up touching the comp strut on full lock which is an MOT fail. Would imagine you'd clear an ARB ok, but not tried.