Move to fixed with SPD pedals

i think the problem is with the multi release spd cleats they are really easy to unclip from. there are two types of spd cleat. the multi release ones SH-56 are shit. the other ones SH-51 are fine even for fixie skiddering, you should not unclip by accident. i've not had any problems with mine.

@entwidomela, it is more likely this^^

i used to have trouble un-clipping with SPD's, they were fine on my single speed, but useless on fixed.
don't listen to Ed, if you change your cleats you should have no more problems.
and spd cleats last 10x than the brass time cleats