In all the Keirin video's I've seen, about 90% percent of the riders still use wooden sole(ed?) shoes, like Duegi, with slotted cleats and single or double laminated leather/kevlar straps. If you have ever tried slotted cleats, you can't remove your foor in any way, short of chopping it off or freeing the straps. You should be able to get them ordered for you in most nicer shops for around $190-$240.