I'm quite happy with 5 10s and pinned pedals. With that combination there's no need for cages for keeping a comfortable and efficient cadence between 98-102.
Reckon I would have to see that to believe it. 100 rpm is somewhat fast. Every 6 tenths of a second, your leg makes a full rotation on the pedals. Start your foot at 12 o'clock and pedal it around to the same 12 o'clock position in 6 tenths of a second. Pedaling 100 rpm on loose pedals is possible for a second or two, no problem. But pedaling 100 rpm on loose pedals for minutes or hours on end, In ancient times the racers used toeclips and straps for the advantage of pulling back and up while pedaling. But the clips and straps also kept their feet attached to the pedals when they pedaled at high rpms. Pedaling at high rpm and having your feet fly off the pedals is not something you want to happen in a close group of bikes on a road.
Yep, I remember the ancient times. My cycling experience goes back only to the early 80s, but at that time cages and straps were a must. The slotted cleats on my leather racing shoes had to be put in place and then belted down so as not to pop off. My canvas touring shoes had a hard rubber sole with little dimples and would slide off the pedals if not caged and strapped.
Very few people actually lift on a pedal stroke, as the force of the stroke is typically transferred from foot to foot before any lifting is done. The only time I lift is on climbs and sprints. So it's quite possible to maintain a good quick cadence (100-105) with soft soled cycling shoes on pinned pedals. My guess is you haven't tried it so you're making assumptions instead of speaking from experience.
I rode nothing but cleats up to a couple years ago. I now have them only on my racer. I have Shimano Saints on my MTB, my touring bike, and my fat bike. My commuter has MKS Lambda (which are not technically pinned, but have little raised "cones" for purchase with the pedals). Cycle specific soft soled shoes with pinned pedals sans cages and straps are a viable option that will allow almost all riders to maintain the cadence they are used to with clipless systems.
Sent from my 0PJA2 using Tapatalk