165 is good for spinning a fairly low gear ratio at a higher rpm..
and not putting a pedal hit into a banked corner on the velodrome ,
and becoming an airborne projectile..
long legged, low cadence big ratio may favor the longer crankarm
for added leverage.
if you want 190, then contact Lennard Zinn, CO based custom builder
and a series of bikes, to the Tall Rider..
He got someone to make longer than 180 cranks ..
Last edited by fietsbob; 08-28-11 at 02:37 PM.