Thread: Larger Tyres

Have a read of this. It should help you out.

Tyre Sizes and Mods Required

Most manufacturers of 285/75R16 tyres will nominate a minimal rim width. I think that ball park is 7.5" which means you should buy 8" wide rims. The tyres will physically fit on 7" rims. I know people who are happy to do this. If thats the way you want to go, you will have to find a tyre fitter willing to do it if it is outside the tyre manufacturer guidelines.

Personally, I'd go with the 8" rims.
Zero offset will fit this size tyre under your original flares. Depending on your vehicle, the inside of the tyres may rub on the suspension components.

-25mm offset will space everything out nicely so you avoid rubbing on the inside of the tyre. They will protrude past your standard width flare. As for contact with the bodywork I cannot comment. My 3" lifted 110 trayback never rubbed at either end with zero offset rims.
My standard height but low km (I.e not very worn or sagged) 130 puma has not yet rubbed with -25 offset rims. Both 285/75R16s.

Hope it helps.

PTC and Cammo thanks for your reply
Looks like the 16x8 rims with -25mm offset are the go
I only plan on putting these on for off-road trips (have a standard alloy rim with road tyres) do you think I can get away without getting wider flares.

I'm not sure too what the stock flares are like on the 110. But on the 130. Any increase in width of the tyre or spacing it out further with the offset. And i will require new flares to keep the tyres under the car.

I have 255/85 r16 on zero offset with spacers and they are just inside the flares, 285/85's with -25 mm wheels will be roughly 40 mm outside the flares. You will have the option with those wheels to go 315/75(34.6in) if you do a 2-3in lift. As your only going 33in they shouldn't touch the body you could always get some of the cheaper rubber flares to replace your originals. If you where doing 35's they can touch the guards so different setup needed like flatdog or terrafirma arches.

285/75x16 on 8" "0" off set rims will protrude past stock flares by 25mm.

FlatDogs are much better quality then the TF's. Both the TF's and FlatDogs are 50mm wider than stock.

Without the wider flares you spray crap all over the side of the vehicle.

285/75x16 on 8" "0" off set rims with FlatDog flares (front and rear)

Thanks for correcting me Grant
I had forgotten entirely about the scrub rails on the 110 which the tyres did not protrude past, and being a trayback they didnt stick out past the tray either so I never gained any unwanted attention from Mr Plod.

Apologies for the incorrect info given above.

As for would you get away with it? Thats entirely up to you and the risks you're willing to take. I did it for a while, until my extended flares arrived. I'm sure you wouldn't be the only one if you chose to. For a modification that looks the goods I'd rather just buy the extended flares and avoid the defect sticker.

Drover is correct again in saying the Flatdogs are higher quality than the terrafirmas. If I had my time over, I'd buy Flatdogs straight up instead of the TFs.

Sorry to start this up again but I already have a set of disco 1 steel rims 16x7 and will stick with those for now
Can anyone tell me what is the largest tyre size I can go both width and diameter with any rubbing on full lock and also keeping them inside the factory flares.
Thank you