Rate my wheel setup. Need advice on tire sizes and rims

[LikeMike]

I have a 22 Mach 1 and I need help with tire sizing on this thing.

The OEM tire size was 255/40 front on 9.5in Rims and 275/40 on 10in in the rear. Handling was great my only issue was I bought this as a daily. The original Michelin Pilot Sport 4S was bad in the cold weather. In normal weather conditions I experienced a lot of tramlining and in extreme conditions I've had the rear end hop a bit.

I liked the HP wheel so I moved to the current setup so that I could fit them:
Michelin Sport All Season 4
275/35 10.5in Front
325/30 11in Rear

I bought these tires from a user here so I am not really sure what the rational was with the tire selection. I think the different aspect ratios was to maintain the same rolling diameter across all 4 tires. I just knew I wanted all seasons and a wider rear (for cosmetic reasons mostly). Handling seems improved, car does feel a tad bit more "heavy/slower". No more tramlining, but I feel like when I brake hard the rear end sways to one side versus straight on. I need to investigate this further.

The primary issue I have an issue with this setup is that the front tires, the rims are not protected by the tires. It's like at 275 the front tires are not wide enough. This cant be the case, is everyone running HP rims like this? I'm thinking its the design of the all seasons, allegedly there is no built in "rim protection". So I need advice on how to fix this. Based on the wheel width and tire width of the rear, it suggests I need 305s up front which sounds ridiculous. Need advice on how to make this look like the tires actually fit lol. Also I don't drive this car on a track but I would like the best handling setup on this without it being too wide. At these widths the dirt is starting to kickup past the fenders, I have not installed any mudflaps yet. There's PPF so I am not too worried. Thanks to anyone who helps me with this.

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[MarquanTR]

305 up front is the normal size for the HP wheels. Finding a 305 in 19 inch is near impossible. I believe you’d be better off with 285/295 upfront as 275 is kind of narrow for a 10.5” wheel

 

[Oakley]

305 up front is the normal size for the HP wheels. Finding a 305 in 19 inch is near impossible. I believe you’d be better off with 285/295 upfront as 275 is kind of narrow for a 10.5” wheel

275 isn't narrow for a 10.5.

275mm is 10.8268 inches

 

[MarquanTR]

275 isn't narrow for a 10.5.

275mm is 10.8268 inches

You’re right, my apologies. Wouldn't a 275 on a 10.5 inch wheel look a bit stretched though?

 

[CrazyHippie]

You’re right, my apologies. Wouldn't a 275 on a 10.5 inch wheel look a bit stretched though?

275/35 R19 on 9.5" rims looks slightly stretched (attached), but not too badly at all. 275s on 10.5" rim would probably be about perfect.

 

[MarquanTR]

275/35 R19 on 9.5" rims looks slightly stretched (attached), but not too badly at all. 275s on 10.5" rim would probably be about perfect.

I see. I think OP needs a bit wider tire to have some sort of rim protection. Perhaps 285 or wider?

 

[CrazyHippie]

I see. I think OP needs a bit wider tire to have some sort of rim protection. Perhaps 285 or wider?

I agree. A 295 is supposed to be max for a 10.5" rim.

 

[mavisky]

I agree. A 295 is supposed to be max for a 10.5" rim.

Where are you getting this information from? Ford ran the 295/35-19 on the 10.5" front wheel of ever GT350 they made. You could go wider if you'd like.

Per Michelin, you can mount their 315/30-19 on a 10.5" rim if you wanted.

 

[CrazyHippie]

Where are you getting this information from? Ford ran the 295/35-19 on the 10.5" front wheel of ever GT350 they made. You could go wider if you'd like.

Per Michelin, you can mount their 315/30-19 on a 10.5" rim if you wanted.

I do see different max tire width recommendations out there, but it seems that 295s max on a 10.5" rim is fairly standard. For example:
https://tirescamp.com/widest-tire-on-10-5-inch-rim/

 

[LikeMike]

Where are you getting this information from? Ford ran the 295/35-19 on the 10.5" front wheel of ever GT350 they made. You could go wider if you'd like.

Per Michelin, you can mount their 315/30-19 on a 10.5" rim if you wanted.

Actually I am so stupid. The OEM size on the HP is 305 front, 315 rear. For some reason I though it was smaller. I guess this means I have to get the lip molding and mudflap, at 275 its already throwing dirt down the sides.

 

[Charlemagne]

I see. I think OP needs a bit wider tire to have some sort of rim protection. Perhaps 285 or wider?

285 has barely any tyre protection. When I lay it front side on the concrete floor, the rim pretty much touches the floor. One must be really careful.

 

[Skye]

https://www.tyresizecalculator.com/charts/tire-width-for-a-wheel-rim-size-chart

https://www.michelinman.com/auto/tires/michelin-pilot-sport-all-season-4?tyreSize=19

https://tiresize.com/comparison/

Using the chart above as an initial reference, a 295 and 305 would be used for a 10.5" and 11" rim.

Michelin A/S 4s jump from 285 to a 325, in a 19"rim. There's nothing in-between.

Continental makes an A/S tire which is very popular. Unfortunately, they do not offer a 295 or 305 in a 19. https://continentaltire.com/tires/extremecontact-dws06-plus/specs

Enclosed is my example, which does involve new tires and rims (new sizes and different style). I realize this might not work for you. If anything, the accompanying photos show how the following rim/tire and offset look with the car profile.

285/35/19 Michelin A/S 4s paired with

LMR/SVE rims, 19x10, +35 square using

Ford Performance TPMS sensors.

 

[Tucker80]

I had 285 DSW06's on the Mach 1 HP wheels and it looked while it worked just fine, it appeared too stretched for my taste. I would definitely recommend going wider, but as mentioned it'll be really tough to find an all season any wider.

 

[WItoTX]

OP, look at tire rack. They will give you contact with for the tires you are looking for. For best handling performance, you want a tire as wide, or slightly (like a tenth of an inch or two) narrower than your rim. And a 275 isn't uniform across all brands.

When one sticks a big fat wide tire on a narrow rim, the handling suffers, bigly. I know first hand.

 

[MarquanTR]

There’s basically no 305 all season options for 19 inch wheel. I had to go 20’s for that

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