Originally Posted by
greenbubba
I'm 6'-2" with a 34" inseam and riding a borrowed 57 cm steel frame. Friends telling me to look for a 58-60 cm bike and that a 63 cm is "too big". I've watched the videos on knee to pedal with cranks at horizontal, etc. Following those rules I've found a 63 cm that fits. I'm wondering why is a bike "too big" if it fits according to this common method?
BTW, the horizontal measurement you are referring to is about getting knee versus foot location and crank arm center. This points ( no puns ) towards attaining an efficient pedal stroke. If your knee moves further back in relation to the center of the crank, it puts additional strain on your knee. It's all about ergonomics, morphology and power to weight ratio's and transfer of energy to forward motion. Also this is about seat tube angle and therefore where you should be adjusting the saddle.
But if none of this matters and you are comfortable with cause and effect physical ailments due to misalignment then ??