Inaccurate Speedo, Up one sidewall size?
#1
Inaccurate Speedo, Up one sidewall size?
Very quick question:
"New" 2017 Clubman S All4 (already autocrossed once!) and the speedo is pretty far off (speedo is fast) with the stock 225/45/17s. This is a mini-certified-used, so they put those low-grip Pirelli run-flats on it and they need replaced. Looking at the tire-size calculator I think replacing them with 225/50/17s will almost exactly fix the speedo offset, and I expect that will fit the car fine. Sidewall height is less than half an inch taller, so I think it will still look fine on the car and it looks to me like there is plenty of room for them to fit.
Thoughts? Anyone done this?
Thanks!
"New" 2017 Clubman S All4 (already autocrossed once!) and the speedo is pretty far off (speedo is fast) with the stock 225/45/17s. This is a mini-certified-used, so they put those low-grip Pirelli run-flats on it and they need replaced. Looking at the tire-size calculator I think replacing them with 225/50/17s will almost exactly fix the speedo offset, and I expect that will fit the car fine. Sidewall height is less than half an inch taller, so I think it will still look fine on the car and it looks to me like there is plenty of room for them to fit.
Thoughts? Anyone done this?
Thanks!
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