Questions about 20" Wheels

[bigblackchevy]

Hello All,

I am thinking about putting 20's on my 2005 Hoe. So I have a few questions before I make the plunge.

Will they affect my gas mileage?

Will I need bigger brakes?

Will I need to get the Odometer reprogrammed? Not a big deal, I have a custom tune.

What tires do 20's owners run on them? I'm thinking about Michelin LTXs. It's a daily driver plus I tow a boat with it.

Also, has anyone tried to sell their stock rims with the tires on them? I have Michelin CrossTerrains on mine only 20K miles on them. The local tire shop feels I can easily get $800 if not more for them.

Thanks

 

[DutchTBI]

I have 285/50/20 Hankook Ventus on my 20"s. The steering became more responsive and direct and they're a lot more quite than the stock Firestone Wilderness that were on my 16"s. I like these Hankooks very much.

fuel consumption is al little higher but not much. With the 285/50/20's the odometer is more precise than before. Before driving 120 km/h was actually somewhere around 114 km/h, now it's almost exact 120 km/h.

Still have got the stock brakes, no noticible difference after putting on the 20"s.

 

[Big Tap]

The gas consumption might increase, but the increase is probably negligible and you most likely won't notice. You shouldn't need larger breaks to run 20's. I run 22's and don't really notice any break loss. If you decide to run 24's or more, I would definitely suggest it though. If you run a tire that gives you the same overall diameter as your stock 16" set-up, you won't need to program the odometer. If you run something larger or smaller, than you might want to. It really depends how picky you are. Mine is off 1-2 mph, but it doesn't really bother me. You MIGHT be able to get $800 for your stockers, but I wouldn't necessarily hold your breath. I've seen lots of sets of aftermarket rims and tires going for only a few bucks more. As sales go though, it only takes one buyer.

 

[Polecat]

I run 285/50/20's and didn't change much on gas, or braking.
Running Nitto 420S's...

 

[Jerome A Franks]

You might want to see my thread I made regarding 24's.. Might be a lil different but you can at least see some of the response I got.

 

[Dr. Overkill]

Any time you increase unsprung weight (you're exchanging rubber for metal, so you're increasing the overall weight of the wheel/tire combo) you *should* consider improving the braking. It may not be perceptible, but everything I've read on the subject says that stopping distance will increase when plus-sizing your wheels. If you don't want to get into larger rotors and better calipers, at a bare minimum you should replace your rubber hoses with SS braided, and consider a more aggressive pad compound.

You may never feel a difference, but if you have to make just one panic stop to avoid an accident, it could mean the difference between a smashed front end and walking away intact.

_dennis

 

[matt14]

After i put the 22's on my kon, i did notice a little more braking effort when stopping. It actually feels more like if i had hella passengers or weight in the truck. I am going to step up my braking system with larger rotors and calipers down the road. I would suggest to replace them, but you can wait. And i run nitto 420's. the mileage changed about 2-3mpg less bu the odometer did not.