Recieved SPDs as an xmas gift from the kids (ok, the wife since the kids were 9 and 11). Went to the basement and put them on my 24" BMX cruiser, held a post, locked-in and told the kids, "Watch this!" I rode slowly across the basement and quickly realized that I did not adjust the tension on the new pedals and could not unclip. I ran out of space and went down in a slow-motion-grasping-at-anything fall. Laying there, my youngest did ask if I had to return the, "broken pedals" since it was not going to help me race.