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I'm in Boston and typically have a winter set of wheels/tires and swap twice a year...
Last edited by DrDrXanderLi; Sep 18, 2024 at 06:37 PM.




I saw your other threads as well, so thought you might be able to answer this related question (not to hijack my own thread...)
I had a 2018 Mercedes GLS450 that I just sold, and I’m in the process of ordering the 2025 Mercedes EQE Sedan…
My winter wheel/tire set for the GLS looks like it MIGHT fit onto the new car (with new tires of course), but I need an expert opinion:
Bridgestone Blizzak DM-V2s 275/55 R19s on Rial M10X 19x8.5 (ET54mm I think) rims
I’m getting the EQE with 255/40 R20s on 20x9.0 (ET50mm) rims... and was I was planning on getting winter tires for my Rial rims (255/45 or 245/45 R19s Michelin X-Ice or similar)
But, I’m wondering if the ET difference is too much and the rims will be too close to the brakes, if spacers would make sense, or if I should just get a new set of rims along with new tires?




I saw your other threads as well, so thought you might be able to answer this related question (not to hijack my own thread...)
I had a 2018 Mercedes GLS450 that I just sold, and I’m in the process of ordering the 2025 Mercedes EQE Sedan…
My winter wheel/tire set for the GLS looks like it MIGHT fit onto the new car (with new tires of course), but I need an expert opinion:
Bridgestone Blizzak DM-V2s 275/55 R19s on Rial M10X 19x8.5 (ET54mm I think) rims
I’m getting the EQE with 255/40 R20s on 20x9.0 (ET50mm) rims... and was I was planning on getting winter tires for my Rial rims (255/45 or 245/45 R19s Michelin X-Ice or similar)
But, I’m wondering if the ET difference is too much and the rims will be too close to the brakes, if spacers would make sense, or if I should just get a new set of rims along with new tires?
Right now, I'll be treating the WRG5s as winter tires and keeping them on, theoretically, for about 6 months and then going to all seasons. If I were in your shoes, I'd either get a different set of properly-spaced rims or just have a tire shop switch them. I've been in both situations, and as I have a lift, I greatly prefer having a dedicated set of rims, but I do think that small differences in offset can make a difference in efficiency and ride quality. Might be minor, but the car's handling and behaviors are optimized for a particular set of configurations.
Thought about adding Blizzaks again, but the range hit would be too big. They're unbelievable tires in the snow and ice, but I think the WRG5s will do well enough for what we need. We live in Louisville, KY and while we can sometimes get a few feet of snow per year, it's often less. Hoping the all weather compound and tread blocks will do the trick, and I look forward to not panicking when we have occasional winter heat waves that bring the temperatures above 45°. My dad has CrossClimate 2s on his EQE SUV, and they've been fantastic in the cold weather.
My son lives in a snow belt area north of Toronto, drives every day, and says that all season have been fine on his Tesla M3 over the last 5 years. He has never been stranded or had any scary incidents. A dedicated set of winter tires on rims will provide maximum traction. Balanced this against the inconveniences/cost of switching twice a year and the storage of the wheels.




My son lives in a snow belt area north of Toronto, drives every day, and says that all season have been fine on his Tesla M3 over the last 5 years. He has never been stranded or had any scary incidents. A dedicated set of winter tires on rims will provide maximum traction. Balanced this against the inconveniences/cost of switching twice a year and the storage of the wheels.


