Are 25mm rear / 15mm front wheel spacers too aggressive
#26
Senior Member
This is a good tire / rim calculator.
You just need the basic measurement on you car, and you can calculate any combination, see if they fit.
https://www.wheel-size.com/calc/
You just need the basic measurement on you car, and you can calculate any combination, see if they fit.
https://www.wheel-size.com/calc/
#27
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2007 Mercedes E550
Hi All,
So am I missing something in terms of wheel bolt length? It should be really simple, right? Assume that your factory wheel bolt is 27.9mms, and round to 28mms for simplicity. If you put a 10mm spacer on your car, then the wheel bolt would been to be 38mm (=28mm (OEM wheel bolt length) +10mm (spacer length)). If you put on 20mm spacers, then you would need 48mm wheel bolts (=28mm (OEM wheel bolts length) + 20mm (spacer length). No?
So am I missing something in terms of wheel bolt length? It should be really simple, right? Assume that your factory wheel bolt is 27.9mms, and round to 28mms for simplicity. If you put a 10mm spacer on your car, then the wheel bolt would been to be 38mm (=28mm (OEM wheel bolt length) +10mm (spacer length)). If you put on 20mm spacers, then you would need 48mm wheel bolts (=28mm (OEM wheel bolts length) + 20mm (spacer length). No?
#28
Senior Member
The trouble with Airmatic is that the cars have a tendency to sink, when left alone for a while. Therefore going to the edge of the fender, is not a good idea. The tire must be able to crawl up in the wheel arch. You can roll the fender, but then the inner plastic protection will not fit anymore, or be loose.
Also the Airmatic do lower the car during ride, so that a pot hole can damage your fender and tire. Worst case your tire explode.
I have a W211 Wagon myself, and due to the above, I stay inside the wheel arch.
Even if your car don't sink right now, it only need to do it once, and your fenders are ruined.
Try the wheel calculator, and measure out your car.
Also the Airmatic do lower the car during ride, so that a pot hole can damage your fender and tire. Worst case your tire explode.
I have a W211 Wagon myself, and due to the above, I stay inside the wheel arch.
Even if your car don't sink right now, it only need to do it once, and your fenders are ruined.
Try the wheel calculator, and measure out your car.
#29
Senior Member
Hi All,
So am I missing something in terms of wheel bolt length? It should be really simple, right? Assume that your factory wheel bolt is 27.9mms, and round to 28mms for simplicity. If you put a 10mm spacer on your car, then the wheel bolt would been to be 38mm (=28mm (OEM wheel bolt length) +10mm (spacer length)). If you put on 20mm spacers, then you would need 48mm wheel bolts (=28mm (OEM wheel bolts length) + 20mm (spacer length). No?
So am I missing something in terms of wheel bolt length? It should be really simple, right? Assume that your factory wheel bolt is 27.9mms, and round to 28mms for simplicity. If you put a 10mm spacer on your car, then the wheel bolt would been to be 38mm (=28mm (OEM wheel bolt length) +10mm (spacer length)). If you put on 20mm spacers, then you would need 48mm wheel bolts (=28mm (OEM wheel bolts length) + 20mm (spacer length). No?
#30
Senior Member
The trouble with Airmatic is that the cars have a tendency to sink, when left alone for a while. Therefore going to the edge of the fender, is not a good idea. The tire must be able to crawl up in the wheel arch. You can roll the fender, but then the inner plastic protection will not fit anymore, or be loose.
Also the Airmatic do lower the car during ride, so that a pot hole can damage your fender and tire. Worst case your tire explode.
I have a W211 Wagon myself, and due to the above, I stay inside the wheel arch.
Even if your car don't sink right now, it only need to do it once, and your fenders are ruined.
Try the wheel calculator, and measure out your car.
Also the Airmatic do lower the car during ride, so that a pot hole can damage your fender and tire. Worst case your tire explode.
I have a W211 Wagon myself, and due to the above, I stay inside the wheel arch.
Even if your car don't sink right now, it only need to do it once, and your fenders are ruined.
Try the wheel calculator, and measure out your car.
This is mine after 3 weeks.
#31
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Join Date: Aug 2019
Location: Charlotte, NC
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W211 E350 SPORT / BMW E70 X5
Nice! Do you get any rubbing when it's down that low?
When i got them they had the bolts included but it was a couple years ago, they may have changed their policy. I would give them a call or shoot them an email and ask. I'm sure they'll take care of you!
When i got them they had the bolts included but it was a couple years ago, they may have changed their policy. I would give them a call or shoot them an email and ask. I'm sure they'll take care of you!
#32
Senior Member
But the reason is partly that the tires are oversize 265/45/18.
Last edited by SLcharge; 08-26-2019 at 01:39 PM. Reason: Tire size added
#34
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2007 Mercedes E550
[QUOTE=SLcharge;7838387]The trouble with Airmatic is that the cars have a tendency to sink, when left alone for a while. Therefore going to the edge of the fender, is not a good idea. The tire must be able to crawl up in the wheel arch. You can roll the fender, but then the inner plastic protection will not fit anymore, or be loose.
Also the Airmatic do lower the car during ride, so that a pot hole can damage your fender and tire. Worst case your tire explode.
I have a W211 Wagon myself, and due to the above, I stay inside the wheel arch.
Even if your car don't sink right now, it only need to do it once, and your fenders are ruined.
Try the wheel calculator, and measure out your car.[/QUOTE}
Sounds like running 20mm with airmatic could be dangerous. Looks like a smaller spacer would be better/safer. Maybe 10mm?
Also the Airmatic do lower the car during ride, so that a pot hole can damage your fender and tire. Worst case your tire explode.
I have a W211 Wagon myself, and due to the above, I stay inside the wheel arch.
Even if your car don't sink right now, it only need to do it once, and your fenders are ruined.
Try the wheel calculator, and measure out your car.[/QUOTE}
Sounds like running 20mm with airmatic could be dangerous. Looks like a smaller spacer would be better/safer. Maybe 10mm?
#37
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2007 Mercedes E550
It just sounds like it is too risky for me to run spacers with airmatic.. My last car was a w219, cls500, and when airmatic failed, I was at least able to limp home. If the wheels locked in this situation that would be a disaster. My wife would once again tell me that I "always" break my car which would suck.
#38
Senior Member
I run 15mm front and 20mm rear on staggered 19's and no issues ever. I've had them on for about 2 years now. only problem is in the front you have to either get hubcentric spacers or make sure it's perfectly centered or you'll get some steering wheel vibration. Perfectly safe if torqued correctly though!