WikiPedalia is not endorsed or affiliated with the Wikimedia Foundation.
K.O.P.S. (Knee Over Pedal Spindle)
This refers to a popular fitting theory that states: When the cranks are horizontal, a plumb line straight down from the front of the rider's front knee should intersect the spindle of the pedal. This condition is achieved by adjusting the front/back position of the saddle.
This approach is quite popular with racing coaches, but it is by no means clear that this is a good setup for general cycling. Many recreational riders prefer a more rearward saddle position than this, with the extreme case being the recumbent position.
Some triathletes and time trialists prefer a more forward position. This is generally an approach that is used with æro type handlebars and arm rests.
See also Keith Bontrager's article "The Myth of K.O.P.S." and my article on Frame Sizing
