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Hi guys am currently driving w205 c400 w/ amg 19s OEM wheels. Am planning to change after market rims. Should i upgrade to 20s or stay with 19s? some says stay with 19s so you dont defeat the performance of the car. some say 20s looks nicer on the new c class.. I want to find out if i upgrade to 20s it wont really affect the performance of the car.. MB enthusiast your input are much appreciated!!
if the 20 inch are lighter then the 19 then you will not lose any performance, unsprung weight, make sure you keep the rolling diameter the same as well
if the 20 inch are lighter then the 19 then you will not lose any performance, unsprung weight, make sure you keep the rolling diameter the same as well
Thanks so much Zarrah! am currently using oem amg 19s with run flat tires. did some research and 18s stock amg rims are 25.74lbs front and 26.4 lbs rear already! am sure 19s are more heavy. plus am using run flat tires front 225/40/19 and 245/35/19 rear.
Now, planning to upgrade to 20s with forged rim weighing 22-24lbs am planning to just get performance (non run flat) tires and should be lighter over all.. so performance should be okay right? but you mentioned the diameter and make sure its the same 20s for sure is bigger i was thinking of getting 235/30/20 front and 285/25/20 rear you think its about the same diameter over all? 40 series front 19s vs 30 series front 20s and 35 series rear 19s vs 25 series rear 20s.. should i worry about the width since the 20s are much lighter?
Keep in mind the car is a 4matic, and has no spare, going to a 20 inch requires some creative options with tires to meet the correct overall diameter for the 4matic function, and getting the correct rims that clear the brakes and have the proper offsets for the tire combination. Remember most wheel manufacturers make wheels to fit a variety of models, so 20's that are made to fit an S class could be too aggressive for a C class. Keep in mind too that 20's will have a lower profile and will be a risk not having the runflat option, so don't drive too far from home or a near by MB dealer!
I would stick with ordering a 19" package using a 8.5 and 9.5 combo, we have this application on our demo and the 8.5/9.5 width really filled out the fenders and allowed us to still use the factory Run flat tires.
To each their own, but I would strongly suggest to consider function rather than focus on weight and looks. Your not driving your car on a racetrack, so weight between a 19 and 20 is not going to make much of a difference for your day to day driving.
Keep in mind the car is a 4matic, and has no spare, going to a 20 inch requires some creative options with tires to meet the correct overall diameter for the 4matic function, and getting the correct rims that clear the brakes and have the proper offsets for the tire combination. Remember most wheel manufacturers make wheels to fit a variety of models, so 20's that are made to fit an S class could be too aggressive for a C class. Keep in mind too that 20's will have a lower profile and will be a risk not having the runflat option, so don't drive too far from home or a near by MB dealer!
I would stick with ordering a 19" package using a 8.5 and 9.5 combo, we have this application on our demo and the 8.5/9.5 width really filled out the fenders and allowed us to still use the factory Run flat tires.
To each their own, but I would strongly suggest to consider function rather than focus on weight and looks. Your not driving your car on a racetrack, so weight between a 19 and 20 is not going to make much of a difference for your day to day driving.
I hope this info helps!
Jim :}
Hey Jim! Thanks for the advice! you are correct i may end up staying with 19s and save a lot of $$$ on tires. that way i dont have to worry of the diameter weight. but i was thinking 10 or 10.5 rear is 19s is way too much for my 245/35/19.. Btw, any good news on Brabus? are they making exhaust for c400 i hope mercedes c450 has exactly the same exhaust spec
Brabus will not be developing an exhaust for the C400, going forward they may end up building one for the C350 and C450, but those cars are still going to take some time to be released and then have the part engineered and produced.
Putting a 10 or 10.5 rim on the rear of your car is only going to stretch your rear tires even more...I would suggest to reduce your effort of being creative with tires and run exactly the tires you have on the car with an 8.5/9.5x19 rim combination. 8.5/9.5 is a common application for 19 inch wheels throughout the market, those sizes with a ET45 offset will be suitable for your vehicle.
Jim
Originally Posted by darwin329
Hey Jim! Thanks for the advice! you are correct i may end up staying with 19s and save a lot of $$$ on tires. that way i dont have to worry of the diameter weight. but i was thinking 10 or 10.5 rear is 19s is way too much for my 245/35/19.. Btw, any good news on Brabus? are they making exhaust for c400 i hope mercedes c450 has exactly the same exhaust spec
I ordered some 20x8.5 front and 20x10 rear, with 235 35 20 and 275 30 20 keeps the rolling diameter to 26.5" front and back, and weight is same as my 18 inch wheels
I ordered some 20x8.5 front and 20x10 rear, with 235 35 20 and 275 20 20 keeps the rolling diameter to 26.5" front and back, and weight is same as my 18 inch wheels
Ohh i see.. Thats typo error right? should be 285/25/r20... How was the ride of the car? Are you on airmatic... Can i see some picture if you dont mind. Thank you.
Brabus will not be developing an exhaust for the C400, going forward they may end up building one for the C350 and C450, but those cars are still going to take some time to be released and then have the part engineered and produced.
Putting a 10 or 10.5 rim on the rear of your car is only going to stretch your rear tires even more...I would suggest to reduce your effort of being creative with tires and run exactly the tires you have on the car with an 8.5/9.5x19 rim combination. 8.5/9.5 is a common application for 19 inch wheels throughout the market, those sizes with a ET45 offset will be suitable for your vehicle.
Jim
Hi Jim!! Please see attached file. What do you think about this rim if i stay 19s??? The center doesnt go all the way to the lip.. But am getting the flat lip (pic shows step lip) Front 8.5 1 inch flat lip rear 9.5 1.5 lip flat Lip. Center high polish deep bronze hardware chrome and lip candy gloss balck.. I hoe it still look big on my car.. Thanks
Stand out from the crowd, 19s are way to common, 20s are a perfect fit.
Been waitng for you to see this thread Vic!!! Hahaha!! Tell me whats the best tire option for me? Did you see the rims attached to the thread? Thanks again
Depends on if you want to go staggered or run a square setup?
Planning 8.5 front width lip 1 inch amd 10 rear width 1.5 lip.. Hows 235/30/r20 front and 285/25/r20 rear planning to drop the car also a little bit (non airmatic) .. Any recommendation Sizing and tire brand? I live in california.. Thanks vic..
Sorry for the delay, I was away on vacation and just returned; in regards to your image you sent about the look of a 19 vs a 20, no matter what a 20 inch wheel and tire is going to look more striking, and the wheel you posted that is a 3pc wheel with a step lip in 19 is going to look small as the center forging of the wheel will have spoke that only are 16-17 inches, so whether you are doing a 19 or a 20 inch with a step lip the size will look smaller no matter what. One option to consider to make the wheels appear larger would be to have the rim outers of the 3pc wheels finished in a brushed finish vs a chrome or high polished, because Chrome reflects everything around into the rim the size of the wheel will only be defined by the center which will look small sitting in a chrome rim, however a brushed or painted rim outer will not pull in those reflections and allow you to see the wheel from edge to center. In regards to offset, the definition of Offset relates to the wheel backspacing, this is the measurement of where the wheels are positioned on the vehicle, so the higher the offset the further in the wheels will sit, and the lower the offset they will sit further out.
I hope this info helps!
Jim
Originally Posted by darwin329
Hi Jim!! Please see attached file. What do you think about this rim if i stay 19s??? The center doesnt go all the way to the lip.. But am getting the flat lip (pic shows step lip) Front 8.5 1 inch flat lip rear 9.5 1.5 lip flat Lip. Center high polish deep bronze hardware chrome and lip candy gloss balck.. I hoe it still look big on my car.. Thanks
Am getting this design on 20s front 8.5 and rear 10 on a flat lip with minimal lip staggered (pic shown was deep lip its going with wide body) I guess it would appear bigger since its flat lip.
Center: am going satin DDT- its kinda dark grey matte finish
hardware: gloss black
Lip: like what you said am going clear gloss BRUSHED
inner: candy red hehehe
maybe you can help me with the best offset! according to forum best offsets are the ff:
Forgot to ask..hmmm hows gloss black for the lips.. You think its nice too? Was just thinking black lip will blend in too much with the tires?? Clear gloss brushed lip first choice then gloss black second choice pls see attached pic in gloss black lip
You will regret the red inner barrels, I would strongly suggest to have them powder coated in a matte black, you want the center and rim to pop, not the inner barrel that will be dirty and full of brake dust over time.
Having them changed later after you figure out how much you regret it will cost you more money and more headaches.
I am surprised that the company selling you the wheels wouldn't try to talk you out of this. I have sold 3pc wheels many times during my career and I helped start and build Nutek Forged wheels back in 2008 and I can tell you for sure that you are going to hate the red inners. Doing them in matte black will allow the center to pop, the brakes, and will compliment everything on the outside of the wheel, but if you do the inners in red, the inner is going to be the only focal point of your wheels.
I ordered some 20x8.5 front and 20x10 rear, with 235 35 20 and 275 30 20 keeps the rolling diameter to 26.5" front and back, and weight is same as my 18 inch wheels
Hi Zarra! Hows ride of your car sitting on 20s with lowering springs?? Are you on sports suspension too? Thank you..
07-21-2015, 04:07 PM
