Are 255/50/R19 tires too big?
05-12-2015, 01:22 AM
#1
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Are 255/50/R19 tires too big?
Not too happy with the stock wheel/run flat tire set up on my 2015 GLK. I've already ordered a set of Rays 57 Motorsport G07EX Wheels (19x8.5). For tires, it's either 245/45 or 255/50 tires. I believe the 245s willl work without any rubbing issues but the 255s has a more aggressive appearance. I noticed the wheel well space on GLKs are fairly tight. Do you guys anticipate any rubbing issues with the 255s? Especially the fronts when the wheels are turning.
Best.
Best.
05-12-2015, 05:48 AM
#2
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W204 C63 Coupe, W166 ML350 BlueTEC, 928GT, C5 Z06 & IS300 race cars, EQE 4Matic+ on order
255s on the front are too wide, and I wouldn't mount them on a 8.5" wide rim. Not sure of your rim offsets, but if the offset is low enough that the tires don't rub on the suspension components, they will stick out past the fenders.
Why not run the OEM 235-50R19 size (not run-flats - those do suck) with your new rims? They are a perfect fit for a 8.5" wide rim.
Why not run the OEM 235-50R19 size (not run-flats - those do suck) with your new rims? They are a perfect fit for a 8.5" wide rim.
Last edited by Diabolis; 05-12-2015 at 05:51 AM.
05-12-2015, 04:33 PM
#3
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The Rays wheels have an offset of 44, which isn't that much different than the stock ones. The stock 235 tread width looks too whimpy. My boss has 255/50/19 on his X5. That's when I realized that size might be too large. At this point, I'm going with 245/45/19, unless someone has some insight on fitment issues.
05-13-2015, 03:10 PM
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W204 C63 Coupe, W166 ML350 BlueTEC, 928GT, C5 Z06 & IS300 race cars, EQE 4Matic+ on order
A different tire diameter front and rear will make the front wheels turn at a different rate from the rears, which you don't want on a 4Matic as the car will interpret the difference in rotational speed to mean that one axle is slipping and as a result will try to redirect more power to the slower turnign axle, slipping the diff clutches in the process. Unless you're willing to take the risk of destroying your transfer case, stick with the same size wheels front and rear.
05-14-2015, 12:23 PM
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2016 Golf R, 2014 GLK
There is such a small amount of room with the front suspension - even with the stock wheels, put your hand in there - it's extremely tight.
I'd really stick with OE sizing, or you're going to have to go really low offset to compensate, but as diabolis mentioned, your tires are going to stick out past the fenders.
This just isn't the best vehicle for trying to get an aggressive stance - the factory wheels have already just about maximized the available area.
I'd really stick with OE sizing, or you're going to have to go really low offset to compensate, but as diabolis mentioned, your tires are going to stick out past the fenders.
This just isn't the best vehicle for trying to get an aggressive stance - the factory wheels have already just about maximized the available area.
