Ummm....Guys
the Truvativ Husselfelt crank set is a 22 tooth mtb style crank set, with the chainring bolted on. For this guy to run a FFW he would have ro replace cranks, hub, rear sprocket, freewheel and bottom bracket The Truvative uses their own type of BB interface, so it isn't compatible with ISIS.
Sorry mate, but to move to FFW you are looking at £150+
James