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🚑 [Pic] Warning to Coupe owners with Optional RXC Forged Wheels & 38 PSI tyres
Hey mates
If you have the optional forged leightweight rims on your coupe and running your front tyres at or below 38 PSI fronts and below 34 PSI rears they will crack and bend..........
Should have listened to old mate @Jimmy_c63s ......... 🤦♂️🤦♂️🤦♂️
I spoke to management at AMG Sydney about this because I have seen over five other instances of this happening on social media posts............
Here's the kicker::: AMG Sydney reckon that the tyre pressures on the fuel door are actually only recommended for the STANDARD C63S mesh and star type of wheels...............
NOT THE OPTIONAL RXC black with polished silver lip lightweight forged pieces of shet which are made by APPTECH in Italy 👎👎👎
AMG explained these wheels are so bloody light, they are lighter than carbon counterparts. Not sure about that statement but okay.............
And being so light, this is why they CRACK and BEND if you run tyre pressures lower than 38 PSI on the fronts and 34 PSI rears.
The whole Mercedes experience is something I'll probably never go through with again tbh. But whilst I'm stuck with this lemon i find it a responsibility to share my experience.........
Mine buckled driving in Sydney streets which aren't even that bad. No bad potholes and im not married anymore so no wife to blame............
Please take my advice if you have these wheels............. ☝☝☝
44 PSI FRONT and 39 PSI REARS is what you should be filling them to (COLD) if you have these particular wheels on the Coupe.
All other C63S AMG factory wheels are fine at lower pressures.
Can you spot the buckle?
Regards,
George Lisciandro
Last edited by George_1992; Apr 11, 2021 at 09:56 AM.
⏱️ 700HP Facelift converted C63 S Coupe with Drexler 3.06 plated LSD
Originally Posted by George_1992
Should have listened to old mate @Jimmy_c63s ......... 🤦♂️🤦♂️🤦♂️
F*cken told you aye.
Ever since mine cracked last year running 36PSI front 34 PSI rears it cost me $4000 AUD for second hand set which luckily were in good condition. Mercedes wanted $11,000 for a set. Sh*t c*nts.
I've seen heaps of guys crack theirs too on social media.
Of course AMG know about this but are trying to keep quiet about it 👎
Doesn't surprise me though. They're always ducking and diving when it comes to addressing things.
Last edited by Jimmy_c63s; Apr 11, 2021 at 05:48 AM.
Is that 38 psi on fronts and 34 psi on rears as cold pressures? Or is that what they should be once they are warmed up and at proper running temp? My car is on order, not here yet, and I've got the black, twin-5 spoke forged with the visible, beautiful metallic lip running round the edge.
Is that 38 psi on fronts and 34 psi on rears as cold pressures? Or is that what they should be once they are warmed up and at proper running temp? My car is on order, not here yet, and I've got the black, twin-5 spoke forged with the visible, beautiful metallic lip running round the edge.
44psi front and 39psi rear COLD to stop the buckles and cracks........ these APPTECH RXC wheels are like fudge & yes they are very light but they are prone to damage
44psi front and 39psi rear COLD to stop the buckles and cracks........ these APPTECH RXC wheels are like fudge & yes they are very light but they are prone to damage
44 psi front and 39 psi rear?? and that too cold? umm you must be bouncing around in the car with those lol
⏱️ 700HP Facelift converted C63 S Coupe with Drexler 3.06 plated LSD
Originally Posted by untamedd
44 psi front and 39 psi rear?? and that too cold? umm you must be bouncing around in the car with those lol
Sucks but I've been forced to run these pressures too after my original RXC wheels cracked and bent after running 36 PSI front and 34 PSI rears and although it's not as comfortable, it's not bad 😊
But any more than that the fronts will really tramline.
The coupe fuel door actually has 44 PSI/39 PSI listed for carrying people etc.
If I had the spoke mesh wheels I'd be able to run much lower pressures. Argh.
Sucks but I've been forced to run these pressures too after my original RXC wheels cracked and bent after running 36 PSI front and 34 PSI rears and although it's not as comfortable, it's not bad 😊
But any more than that the fronts will really tramline.
The coupe fuel door actually has 44 PSI/39 PSI listed for carrying people etc.
If I had the spoke mesh wheels I'd be able to run much lower pressures. Argh.
wouldnt that only be for top speed runs? i was going by the R19/20 above that where it says 33F and 32R. Torontos **** roads would probably destroy those so i usually go with 35-36 all around.
My tire shop did 40 psi all around after a swap and the ride was so harsh that i could not take it. Had to pull over and deflate so thats why I was a little surprised to see 44psi but i mine doesnt have the same rim as orininal poster so maybe its that
Did you ever put those wheels on a scale? Not sure I believe that lightweight and therefore fragile argument. There are tons of aftermarket, quality forged wheels which are lightweight and don't bend or crack. I weighted my cross-spoke OME 19" forged and they were right around 21lbs. I switched to BC forged and ran into a real bad pothole one day where I could have sworn my rim is toast....but nothing and that on 30 profile tires.
PS: I run 40-44 cold all around (depends on outside temp) ...not racing and just because of 30 profile tires. When I put them down to 32 I can see the bulge and that's not a good "look" on 30 profile tires.
When I ordered the wheels, I ordered the black, forged, twin 5-spoke wheels. However, at the time of ordering, there was also the option to order black, forged, crossed "multispoke" wheels. I've attached pics of the one we keep talking about, as well as the forged "multispoke". Are both of these wheel types equally fragile and at risk for damage???
Well thats unfortunate. I love the twin 5-spoke black forged wheels. Thats why I ordered them. ... ... so as long as I maintain pressures I should be ok??
Are the black, forged, multispoke, crossed-spoke wheels (the slightly heavier and therefore "safer" wheels that require less strict higher pressures, center-locking? From the pictures, they appear to be center-locking. Is there an advantage to those over the forged twin-5 spoke?
Are the black, forged, multispoke, crossed-spoke wheels (the slightly heavier and therefore "safer" wheels that require less strict higher pressures, center-locking? From the pictures, they appear to be center-locking. Is there an advantage to those over the forged twin-5 spoke?
First answer is nope, advantage - I guess they get not as easy damaged.
⏱️ 700HP Facelift converted C63 S Coupe with Drexler 3.06 plated LSD
Originally Posted by Speeddoc
Well thats unfortunate. I love the twin 5-spoke black forged wheels. Thats why I ordered them. ... ... so as long as I maintain pressures I should be ok??
It's fine, just keep your pressures up and they won't get damaged. Even if your pressures dip a bit they'll still be okay.
I really like the RXC wheels which is why I got another set when both my front ones were damaged.
One cracked at the spoke, got welded but cracked again. And the other side got buckled so ended up buying another set.
You'll be happy with yours man, they are great wheels 👍
Last edited by Jimmy_c63s; Apr 11, 2021 at 10:43 PM.
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