the harris cyclery website crank section has info on what crank plus what length BB spindle will yield what chainline. another good resource is businesscycles.com(net?), as well as searching this forum. those formula hubs you're looking at have a 42mm chainline, which is a track standard. you want a crank and BB combination that will give you 42mm--either on the inside or the outside of the spider if you're using a double, or else you want track cranks with the appropriately matched BB. k?