coming from the downhill world to this new strange place of trials, i know little about discs, oh just one thing yeah hydraulics can come in packs, the old shimano saints etc (that range of stuff) came in caliper and rotor and then the lever was separate, so yeah, anyway yeah i was wondering about discs on trials bikes as well, as i wouldn't mind getting a front one, but thing i will stick with a 33 on the rear because like someone said more pads and well prefer them. Difference between the trial, and the normal mono is that the trial has allot larger pistons, and not really a great deal of modulation which as i keep getting told you don't need in trials, and the trial brake just bites with a lot more power, talk to me on msn if you want to get hold of a cheap mono mini by any chance. Dave