Well, since they are the race edition, the brakes (most likely) don't detach without some "persuading", meaning you'll  have to bend two little metal attachment tabs on each housing not alot, just enough to get them out...I did this by taking the binding off the baseplate and just grabbing the brake housing and bending it up and down slowly...again, only do this if your brake housing doesn't slide out from the binding, etc.
You can bend however you like from there, and just pop them back in when done, after you straighten the tabs you bent.
Or you could probably just fanagle the brake arms outta the housing and bend them to however wide you need, then put them back in.