Join Date: Feb 2009
Location: K.F., Orygun
Bikes: 08 Giant Boulder, 08 Scattante XLR
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Originally Posted by CACycling
A good starting point is when you are on the bike and the pedals are at 9 & 3 o'clock, your knee being over the pedal shaft of your forward pedal. You can adjust for preference from there.
explained a little different: with the cranks horizontal to the ground, feel the kneecap of the forward leg and drop a plumb line from its base, where the kneecap meets the top of the shin bone. The line should cross the center of the pedal shaft.
My own knees are a bit of trouble, and I use a saddle position a little forward of that. Also, on a mountain bike keep in mind that your riding position will change depending on the spring of the fork - mine settles about an inch during normal riding, so I would do the measurement in the settled position.