Originally Posted by
oldbobcat
With that leg length, traditional fitting philosophy would put you on 170s or 172.5s. After wide adoption of Cyrille Guimard's "long crank" fitting in the 1980s, cranks got longer. Greg LeMond, at 5'10" and with similar leg length, used 175s.
My inseam is a bit over 35". I started on 170s, as everybody else did back then. When longer cranks became widely available I switched to 175s and found my climbing improved, at the expense of my sprint.
"Traditional fitting philosophy" assumes your knees work properly.
Mine don't! My R knee was injured many years ago and doesn't flex as much as the L one.
The L one doesn't flex as much as it used to, since I'm 60.
I would have preferred to try 165's, but money is tight for me, so I tried these since I could afford them.
They are working better than the 170's, which worked MUCH better than the 175's. Facts trump "philos0phy" every time!