When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Stock 10spokes cleared on my friends WS6 w/ Corvette brake kit. He rocked them while his new wheels were on there way and his old had sold. I'd imagine FM5's would clear fine.
My 18's are snug . . so I would have to say no . . the shape or the spoke and assembly hardware would prevent it from fitting . . . now if you had a Fikse designed for a Corvette they would be OK.