Wheel and tyre sizes

trebor4444 · 10-21-2018, 12:33 PM

Ok I’ve got my head around the tyre pressure sensors sobybanks for helping but now have the following question

Currently running an F10 with 18inch wheels with 245/45/18 tyres

I have a set of winter 17inch wheels with 225/55/17 tyres

I have stupidly brought replace tyres for my winter wheels but they are 225/45/17

Will this cause me an issue ?

xenon · 10-22-2018, 12:56 AM

Your speedo will over-read somewhat.

HighlandPete · 10-22-2018, 10:27 AM

Quote:

Originally Posted by trebor4444

I have a set of winter 17inch wheels with 225/55/17 tyres

I have stupidly brought replace tyres for my winter wheels but they are 225/45/17

Will this cause me an issue ?

Ooops! Really much too small, (going to add 22.5mm to the wheel arch gap). The tyre is 45mm smaller in diameter. RC is 7% less.

10-21-2018, 12:33 PM	#1
trebor4444 New Member 0 Rep 26 Posts Drives: BMW 520d Luxury 2013 LCI Join Date: Jan 2014 Location: UK iTrader: (0)	Wheel and tyre sizes Ok I’ve got my head around the tyre pressure sensors sobybanks for helping but now have the following question Currently running an F10 with 18inch wheels with 245/45/18 tyres I have a set of winter 17inch wheels with 225/55/17 tyres I have stupidly brought replace tyres for my winter wheels but they are 225/45/17 Will this cause me an issue ?
	Appreciate 0 Tweet Quote

10-22-2018, 12:56 AM	#2
xenon Major General 1394 Rep 8,081 Posts Drives: 2021 G21 330i M-Sport Join Date: Jun 2008 Location: Coventry iTrader: (0)	Your speedo will over-read somewhat. __________________ Ian Current: 2021 G21 330i M-Sport Previous: 2018 A6 Avant S-Line MMI+, 2014 F31 320d M-Sport, 2013 F10 520d M-Sport, 2011 F10 530d M-Sport, 2008 320i M-Sport Coupe, 2002 325i, 2001 318i valvetronic, 1998 318i, 1996 525i, 1990 Porsche 944S2
	Appreciate 0 Quote