Quote:
Originally Posted by doughboy
2% is nothing when new to worn diameter can be around 2% even on matching tyres.
Then add in uneven pressures and vehicle loading will be even more, coulf be over 5% mismatch easy even on same sizer tryes.
The car will just suck it all up when you reset the TPMS.
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OP,
FYI - the M2 systems are able to cope with varied tyre combos F&R.
IMHO its a non-issue, as OEM seasonal tyre swaps demonstrates:-
summer - staggered tyre sizes ie 245/265;
winter - either square or staggered sizes ie 235F&R or 235/255F&R.
Just my 2c worth,
BP