Courtesy of the S&M website; every bit of info you need and nothing you don’t. Those Profile/S&M hubs sound pretty awesome:
We just got the new Revenge ARC rims in. Revenge has some single wall and double wall rims being used on FIT complete bikes, but the ARC is the first after market, sleeved and welded no holds barred rim offering from RI. These are the perfect rims to lace onto some new Profile/S&M shield wrap hubs soon!
REVENGE ARC RIM
ERD 390, WIDTH 34mm
6061 T-6 ALUMINUM, SLEEVED AND WELDED JOINT
AVAILABLE IN BLACK, SILVER, CHROME, DARK GREEN, RED, AND BLUE ANODIZE FINISHES
WEIGHT: 15.75 oz.
MSRP: $54.99 ($59.99 CHROME)