I dropped off an 18" rim to get refurb'd on Wednesday and instead of giving me a lend of an 18" they gave me a 19" rim because they already loaned out one other 19" and they didn't want to be short 2 sets of rims just because there was one of each set loaned out.

So anyway, the road noise from the 19" is dreadful and now I'm getting flat tyre alarms and DSC failure alarms coming up. Could it be that the different pressure and rolling diameter compared to the 18" on the same axle is causing the sensors to throw up these errors?

I am really hoping this is the case and when I get my own 18" back, the issue will be gone! Any opinions??

Thanks!