one thing i havent seen being considered in this thread, is inertial weight.
remember, his application is road racing. so just weight and width alone are not the only factors.
a wheel that has more hub-centric weight, could weigh more than another wheel, yet still get up to speed (so to speak) faster.
vice versa, a wheel that has most of its weight toward the drop center and rim lip, will take more effort to get rolling, but be easier to control and keep momentum up in an application like road racing, where he will almost be constantly moving.
and depending on restrictions for his races, he may not need an intensely wide wheel if he gets the proper tires. applying the power to the ground is imperative on tire selection. you can have 335mm tires, and still not grip or handle for beans. while you can have a 275-295 width tire that would give you superior handling.
just some thoughts. everything else thats been brought up was farely spot on.
in my research, fikse wheels has a great selection of light, wider and weight balance. there are others, but like i said, my research lead me to fikse.
GL!
