View Single Post
      10-24-2012, 11:42 AM   #12

Drives: 1M
Join Date: Jul 2007
Location: Location Location

Posts: 545
iTrader: (0)

EC-7s aesthetic design likely requires more material.

ARC-8 is modelled after the ancient BBS RC wheel design from the 90's. Folks w/ dual street/track aspirations likely wanted an updated look - ala M3 competition wheels.

In general, I believe the more concave a wheel, the more material your need - for a given stress rating, material and manufacturing process.

I'm no wheel engineer - just assembling my observations.