[mikwillo]

I own a 2005 307 hdi xsi which has the challenger alloys fitted with continental 205/50/17 tyres.

My question is, can I change the profile of the tyres to 45 or 40 on these wheels?

 

[Whistler]

Try contacting your local supplier for a better idea on you profile width, as they will be able to give you a greater idea on whats on the market, Regards whistler

 

[Easymikey]

Yes you can

Yes you can change your profile size either up or down, you have to have the same size wheel on each axle. So both tyres either at the back or on the front to be the same sizes