Quote:
Originally Posted by jbass524
The OZ Challenge is low pressure casted. When compared to flow-formed wheels they aren't typically as light or as strong. So you can trust OZ for cool looking wheels but I have seen 3 cracked Ultralegerras. Not the same wheel but I believe the same manufacturing.
This doesn't mean you won't have good luck but for the price you can buy much better wheels: APEX, TRM, etc.
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See the link below. You are correct that these wheels are low pressure cast (according to press release). As a result, they are a little heavy (I think around 24 lbs). They do however have TUV approval which is a good thing. I have not observed ultraleggera failures but that wheel does seem very light relative to its size. I think the OZ Challenge is built a little tougher considering its weight. I honestly don't think most OZ's look "cool" myself. Their designs and offsets are not all that appealing to me in general (including the Challenge wheel which is a little plain). I do however think the Challenge wheels seem like a good track option and OZ has a far better reputation than the alternatives you suggested.
http://blog.tirerack.com/blog/hunter...orsche-and-bmw