Sponsored by The Tire Rack

[TheMidnightNarwhal]

I'm looking for some new wheels as my avant garde m359s have cracked a few times. I really like this style of wheel so I figured why not just get the genuine ones but is it worth it? Are the genuine ZCP wheels any stronger or am I going to have the same issues?

I seen a few threads on the subject but it seems there is no definitive answer.

[Vivek.]

Yes the genuine wheels are forged and are most definitely stronger than the AG's.

[TheMidnightNarwhal]

Originally Posted by Vivek.

Yes the genuine wheels are forged and are most definitely stronger than the AG's.

How or where did you obtain that info?

Every page that I find that sells the wheels do not mention forged at all.

[335i54n]

an easy way to check is if the part # engraved into the wheel its forged, cast wheels have the part# cast into the rims

[TheMidnightNarwhal]

Originally Posted by 335i54n

an easy way to check is if the part # engraved into the wheel its forged, cast wheels have the part# cast into the rims

So not forged then. Pics in this thread, that's casted writing right?

[335i54n]

yup cast, oe wheels are hd and can take more abuse though. arc8 or ta5r are really good quality wheels options

[aphael]

Comp wheels are indeed cast, probably low pressure or flow formed. I would be looking at arc8 forged since they aren't that much more and are considerably lighter. The only oe wheel that was forged is the 220 and that design is pretty horendous imo.

[TheMidnightNarwhal]

Originally Posted by aphael

Comp wheels are indeed cast, probably low pressure or flow formed. I would be looking at arc8 forged since they aren't that much more and are considerably lighter. The only oe wheel that was forged is the 220 and that design is pretty horendous imo.

Originally Posted by 335i54n

yup cast, oe wheels are hd and can take more abuse though. arc8 or ta5r are really good quality wheels options

The thing I don't like about those suggestions is they are only avail in 18 inch and I loose that nice concaveness look. Like, they're all flat faced wheels. I guess though that is limitations of a forged design? Idk. Also at that point I don't need forged wheels being 18 since the sidewall is probably gonna be thick enough to avoid cracks.

That said, do you guys think there is really a difference in quality and strength between OE and AvantGarde? If they are both built the same way.... I doubt the difference is that much? Unless AvantGarde are low pressure and OE are Flow formed (I know for sure AGs are low, not sure about OE wheels).

Flow formed would be perfect because my rims crack in the barrel.

[Vivek.]

Originally Posted by aphael

Comp wheels are indeed cast, probably low pressure or flow formed. I would be looking at arc8 forged since they aren't that much more and are considerably lighter. The only oe wheel that was forged is the 220 and that design is pretty horendous imo.

Unless you're talking only e9x m wheels the bolded text is definitely incorrect.

I find it really odd that OE comp wheels are low pressure cast while the regular 19's are forged. Research states that BMW claimed they were forged in press and marketing materials but most owners and enthusiasts seem to disagree.

[aphael]

Yes sorry, oem wheel that was made for e9x. I am just stating the consensus of what people say on the forums, if wrong I apologize. If I am not mistaken, the 19s were considered an upgrade and the 18s were the base wheel.

Most OEM wheels are low pressure cast, but they also tend to have more weight in them generally but not always making them stronger. I believe its definitely more common to see an AG cracking/bending compared to OE wheels

[Vivek.]

Originally Posted by aphael

Yes sorry, oem wheel that was made for e9x. I am just stating the consensus of what people say on the forums, if wrong I apologize. If I am not mistaken, the 19s were considered an upgrade and the 18s were the base wheel.

Most OEM wheels are low pressure cast, but they also tend to have more weight in them generally but not always making them stronger. I believe its definitely more common to see an AG cracking/bending compared to OE wheels

Yes, correct. The 19" 220's were an upgrade over the base 219M 18" wheels.

TBH I thought they were all forged (219, 220, ZCP) since most M wheels, in general, are. But I do believe you're correct that the 220's were the only forged e90m wheels.

I know my 437M's are forged, you can tell by the etched writing on the back rather than raised lettering. This is the easiest way to tell cast vs forged wheels--especially since so many companies nowadays are watering down the meaning of the word 'forged'

Anyways looks like OP got his answer and I was incorrect in my initial response.

[TheMidnightNarwhal]

Thanks guys.

I guess I'll buy 2 genuine wheels if my rears keep cracking going with the new tire setup.

[Dovydas.B]

OEM style 359 is very very tough. I bought 3 wheels (as a joke for 150eur) which were deformed into egg shapes. I paid 250eur for wheel straitening and there is no problem with them for 2 years now. They did not crack once.