disc's...humm i prefure the maggies buy a long shot because ther lighter,lock on better but they have some down falls such as you have to keep filding with them and the brake way more than disc brakes, but as for disc brakes..they way a ton...the only thing i like the disc for it the modulation so you can modulate it instead off be just on or off on a maggie ye its a trials bike its not there to look pritty its there to be ridden and ridden hard..once you brake it you get another !! thats how you get better.. danny