Replying to Question about PocketRockets and Bindings.

Right now I'm using last year's Look Zr Race bindings on a pair of trouble makers. Im selling my TM's and buying a pair of PR's but my brakes on the bindings wont be able to fit around the PR's. Is there anyway to buy a bigger break instead of buying new bindings? Im thinking that if there isn't I'll just take the breaks off and buy new bindings next year when I have more money. If anyone knows let me know. Thanks.