the bindings themselves are identical, the "LT" is the lightweight touring bracket. you want it for sure. it is a far more solid, durable, and stronger connection to the board when in touring mode. it does make a difference.
More solid? I've experienced that a LT pin brake during riding, be sure to bring a replacement with you...
Last edited by t.e.r.j.e; 06-17-2012 at 07:18 AM.