Originally Posted by comprex
Did going up one size affect your seated climbing ability at all?
Yeah, I know you can't check while indoors on a fit simulator, but did the hamstrings feel stronger or weaker in the new position?
The goal during the fitting was check the angles of the ankles, knees, hips, shoulders elbows & wrists. After measuring my frame and range of motion, Adam was confident that fitting me would not be problematic.
Both the 58 and 60 could be made to fit, but the 60 was closer to ideal. The 58 would have required a well extended seatpost with rearward offset, this would have put my hips rearward of the ideal position to drive the crank. This was demonstrated by dropping a plum line from the knee to the cleat under the ball of the foot. The size 58 frame could not meet this test. The 60 size could be made to work with a non-offset seatpost.
The 58 would also require a taller handlebar position, dependent on spacers under the stem. The stem would have to be longer than ideal also.
The solution was the 60cm frame size. The seatpost selected would have a zero offset to put the hips in the right place over the BB. the handlebars would be positioned by a normal or slightly short stem positioned at a normal height above the headset. Stand-over height would be tight, but I don't care.
I'll let you know how it worked.
Interestingly, Josh suggested a 60 size frame when we rode together last week.