Tyre width vs wheel width

[Steve]

What complications do you see in this?

R888 205/40/17 with either speedlines 7.5 or 8J?

Standard tyres are 215/45/17 but i used to run 195's/50 on trophy & tyres were 205/45 as standard.

Will the 205 stretch ok over 8J as i have 2 sets of speedlines one standard & one magnesium cupracer version

 

[Struggler]

none, the sidewalls might be at abit of an angle,

205 will stretch easily over 8j, probably wont even notice the strech tbh

im running 165/50/15s on 15*7j with no problems, defs some stretch in there tho