just another gosling
Join Date: Feb 2007
Location: Everett, WA
Bikes: CoMo Speedster 2003, Trek 5200, CAAD 9, Fred 2004
Mentioned: 22 Post(s)
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You want to adjust your saddle height so that, with the heel of your cycling shoe on the pedal, your knee is completely locked with the heel just barely touching the pedal, when the crank is aligned with the seat tube.
Adjust saddle position fore-and-aft so that a plumb bob dropped from the bony protrusion below your kneecap bisects the pedal axle, with the pedal forward and the crankarm horizontal. This assumes your bike is on a level surface.
The usual rule is: pain in front of knee, raise saddle. Pain on side or back of knee, lower saddle.