russg wrote:I'm going to be needing to replace the 18" OEM tires on the M fairly soon due to wear.
The OEM tire size is 235/45 18, of which there is only a very small number of choices to be had. I suspect I'll have to go to 245/45 18 to broaden my choices.
Russ, here are the results of my research for tires for my M45 - for OEM sizes and others. The following text is in CSV format and can be read into Excel pretty easily. Note that the prices may be out of date! If you want the original Excel spreadsheet (which also has Q45 possibilities), and filters for looking at various sizes, brands, etc., send me e-mail!
Note that some of the sizes are not intended for the OEM wheel (which is 7.5" wide), so read the correct rows for that!
Mftr,Model,Size,Load,UTQG,Max Load,Max Inflation Pres,Tread Depth,Rim Width Range,Meas. Rim Width,Section Width,Tread Width,Overall Diameter,Revs Per Mile,Est. Speedo Error,Actual at 60mph,Weight,Tire Rack,Discount Tire,Victoria Tire,Comment"""Stock""",,,,,,,,,,,,,,,,,,,,Bridgestone,Turanza ER33,235/45-18,94W,140 A A,1477lbs.,51psi,10/32,"7.5"" - 9.0""","8.0""","9.1""","7.4""",26.5,786,0.0%,60.0,27.0,$220,,,,,,,,,,,,,,,,,,,,,,,"18"" Rims","7.5"" min rim width",235/45-18,,,,,,,,,,,,,,,,,,Bridgestone,Turanza ER33,235/45-18,94W,140 A A,1477lbs.,51psi,10/32,"7.5"" - 9.0""","8.0""","9.1""","7.4""",26.5,786,0.0%,60.0,27.0,$220,,,Continental,ContiSportContact 2,235/45-18,98W,280 A A,1664lbs.,35psi,10/32,NA,NA,"9.3""",NA,26.3,,0.8%,59.5,,$190,,$192,Michelin,Pilot HX MXM4,235/45-18,94V,300 A A,1478lbs.,35psi,10/32,"7.5"" - 9.0""","8.0""","9.3""",NA,26.5,790,0.5%,59.7,,$205,,,,,,,,,,,,,,,,,,,,,,,"18"" Rims","6.5"" min rim width",235/50-18,,,,,,,,,,,,,,,,,,Goodyear,Eagle F1 GS-D3,235/50-18,101Y,280 AA A,1819lbs.,,11/32,"6.5"" - 8.5""","7.5""","9.6""","7.7""",27.3,765,-2.7%,61.6,,$173,,,Michelin,Pilot Sport A/S,235/50-18,97Y,400 AA A,1609lbs.,51psi,10/32,"6.5"" - 8.5""","7.5""","9.5""",NA,27.2,762,-3.1%,61.9,,$205,,$256,Yokohama,AVS Sport,235/50-18,97Y,180 AA A,1609lbs.,51psi,10/32,"6.5"" - 8.5""","7.5""","9.6""","8.3""",27.4,759,-3.4%,62.1,,$198,,$199,Pirelli,P-Zero,235/50-18,101Y,220 AA A,1819lbs.,51psi,10/32,"6.5"" - 8.5""","7.5""","9.3""",NA,27.1,742,-5.6%,63.6,,$149,,$215,Toyo,Proxes T1-S,235/50-18,97W,280 AA A,1609lbs.,44psi,10/32,"6.5"" - 8.5""","7.5""","9.6""",NA,27.3,760,-3.3%,62.1,,,,$227,,,,,,,,,,,,,,,,,,,,,"18"" Rims","7.5"" min rim width",245/45-18,,,,,,,,,,,,,,,,,,Bridgestone,Potenza RE050,245/45-18,100Y,140 A A,1764lbs.,50psi,11/32,"7.5"" - 9.0""","8.0""","9.9""","8.9""",26.6,783,-0.4%,60.2,27.0,$212,,,Bridgestone,Potenza RE050,245/45-18,96Y,140 A A,1565lbs.,51psi,11/32,"7.5"" - 9.0""","8.0""","9.9""","8.9""",26.6,783,-0.4%,60.2,27.0,$206,,,Bridgestone,Potenza RE050,245/45-18,96W,140 A A,1565lbs.,51psi,11/32,"7.5"" - 9.0""","8.0""","9.6""",,26.7,780,-0.8%,60.5,,$263,,,Run FlatBridgestone,Potenza S-03 Pole Position,245/45-18,96Y,220 AA A,1565lbs.,51psi,10/32,"7.5"" - 9.0""","8.0""","9.8""","9.1""",26.7,780,-0.8%,60.5,30.0,$201,,,Continental,ContiExtremeContact,245/45-18,96W,400 AA A,1565lbs.,44psi,10/32,"7.5"" - 9.0""","8.0""","9.6""",NA,26.7,791,0.6%,59.6,,$166,$178,,Continental,ContiSportContact 2,245/45-18,100W,280 A A,1764lbs.,51psi,10/32,NA,NA,"9.8""",NA,26.7,,-0.8%,60.5,,$204,$216,$199,Continental,ContiSportContact 2,245/45-18,96Y,280 A A,1565lbs.,51psi,10/32,NA,NA,"9.8""",NA,26.7,,-0.8%,60.5,,$189,$189,$193,Continental,ContiTouringContact CH95,245/45-18,96H,360 A A,1565lbs.,44psi,10/32,"7.5"" - 9.0""","8.0""","10.0""",NA,27.0,772,-1.8%,61.1,,$139,$151,$140,Falken,Azenis ST115,245/45-18,100W,360 A A,1764lbs.,50psi,10/32,"7.5"" - 9.0""","8.0""","9.4""","8.7""",26.7,774,-1.5%,60.9,,,$163,,Falken,Beta FK-451,245/45-18,96Y,280 AA A,1565lbs.,51psi,10/32,"7.5"" - 9.0""","8.0""","9.7""","8.7""",26.5,785,-0.1%,60.1,,,$175,$176,Goodyear,Eagle F1 GS-D3,245/45-18,96Y,280 AA A,1566lbs.,,10/32,"7.5"" - 9.0""","8.0""","9.5""","7.7""",26.6,,-0.4%,60.2,,$208,$206,,Michelin,Pilot HX MXM4,245/45-18,96V,300 A A,1565lbs.,44psi,10/32,"7.5"" - 9.0""","8.0""","9.2""",NA,26.9,775,-1.4%,60.9,,$144,,,Michelin,Pilot Sport,245/45-18,100Y,220 AA A,,,10/32,"7.5"" - 9.0""","8.0""","9.6""",,26.8,780,-0.8%,60.5,,$270,,,Michelin,Pilot Sport,245/45-18,96W,220 AA A,1565lbs.,51psi,10/32,"7.5"" - 9.0""","8.0""","9.6""",,26.8,780,-0.8%,60.5,,$270,,,Michelin,Pilot Sport,245/45-18,96Y,220 AA A,1565lbs.,51psi,10/32,"7.5"" - 9.0""","8.0""","9.6""",,26.8,780,-0.8%,60.5,,$270,$282,$267,Michelin,Pilot Sport A/S,245/45-18,96Y,400 AA A,1565lbs.,51psi,11/32,"7.5"" - 9.0""","8.0""","9.6""",NA,26.7,779,-0.9%,60.5,,$251,$258,,Nitto,555 Extreme Performance,245/45-18,100W,300 A A,,,,,,,,,,,,,,$168,,Pirelli,P-Zero,245/45-18,96Y,220 AA A,1565lbs.,51psi,10/32,"7.5"" - 9.5""","8.0""","10.2""",NA,26.7,779,-0.9%,60.5,,$208,$218,$208,Toyo,Proxes T1-S,245/45-18,96W,280 AA A,1565lbs.,44psi,10/32,"7.5"" - 9.5""","8.0""","9.8""",NA,26.7,777,-1.1%,60.7,,,,$241,,,,,,,,,,,,,,,,,,,,,"18"" Rims","8.5"" min rim width",255/40-18,,,,,,,,,,,,,,,,,,Bridgestone,Potenza S-03 Pole Position,255/40-18,95Y,220 AA A,1521lbs.,51psi,10/32,"8.5"" - 10.0""","9.0""","10.4""","9.4""",26.1,798,1.5%,59.1,30.0,$209,,,Goodyear,Eagle F1 GS-D3,255/40-18,95Y,280 AA A,,,,,,,,,,,,,$218,,,Michelin,Pilot Sport,255/40-18,95Y,220 AA A,1521lbs.,51psi,10/32,"8.5"" - 9.0""","9.0""","10.2""",,25.9,770,-2.0%,61.2,,$299,,,Michelin,Pilot Sport,255/40-18,99Y,220 AA A,1709lbs.,51psi,10/32,"8.0"" - 9.5""","9.0""","10.2""",,26.0,803,2.2%,58.7,,$299,,,Michelin,Pilot Sport,255/40-18,95Z,220 AA A,1521lbs.,51psi,10/32,"8.5"" - 10.0""","9.0""","10.2""",,25.9,803,2.2%,58.7,,$299,,,Continental,ContiExtremeContact,255/40-18,,400 AA A,,,,,,,,,,,,,$165,,,Continental,ContiSportContact,255/40-18,,160 A A,1521lbs.,51psi,10/32,,,"10.2""",,26.0,,1.9%,58.9,,$148,,,Michelin,Pilot Sport A/S,255/40-18,95Y,400 AA A,1521lbs.,51psi,11/32,"8.5"" - 10.0""","9.0""","10.1""",,26.1,796,1.3%,59.2,,$252,,,,,,,,,,,,,,,,,,,,,,,"18"" Rims","8.0"" min rim width",255/45-18,,,,,,,,,,,,,,,,,,Bridgestone,Potenza RE050A,255/45-18,99Y,140 A A,1709lbs.,51psi,,,,,,,,,,,$205,,,Bridgestone,Potenza S-03 Pole Position,255/45-18,99Y,220 AA A,1709lbs.,51psi,10/32,"8.0"" - 9.5""","8.5""","10.2""","9.5""",27.0,772,-1.8%,61.1,31.0,$205,,,Goodyear,Eagle F1 GS-D3,255/45-18,103Y,280 AA A,1929lbs.,,11/32,"8.0"" - 9.5""","8.5""","10.0""","8.0""",27.0,,-1.9%,61.1,,$204,,,Michelin,Pilot Sport,255/45-18,99Y,220 AA A,1709lbs.,51psi,10/32,"8.0"" - 9.5""","8.5""","10.3""",,26.9,771,-1.9%,61.2,,$276,,,Continental,ContiSportContact,255/45-18,99W,160 A A,1709lbs.,,10/32,"8.0"" - 9.5""","8.5""","10.0""",,27.1,769,-2.2%,61.3,,$193,,,Continental,ContiSportContact,255/45-18,Z,280 A A,1764lbs.,51psi,10/32,"8.0"" - 9.5""","8.5""","10.2""",,27.1,769,-2.2%,61.3,,$167,,,Michelin,Pilot Sport A/S,255/45-18,99Y,400 AA A,1709lbs.,51psi,11/32,"8.0"" - 9.5""","8.5""","10.0""",,27.2,762,-3.1%,61.9,,$231,,,,,,,,,,,,,,,,,,,,,,,"18"" Rims","7.0"" min rim width",255/50-18,,,,,,,,,,,,,,,,,,Pirelli,PZero System Asimmetrico,255/50-18,102Y,140 A A,1874lbs.,51psi,11/32,"7.0"" - 9.0""","8.0""","10.1""",NA,"28.1""",737,-6.2%,64.0,,$265,,,