Originally Posted by
carleton
Here is a pic I snapped of Ken Lo's cranks. They are 150 or 155mm (I can't find my notes). I don't think they are custom. You can (or at least could) get them without a power meter.
FYI, Ken Lo is one of the fastest masters Man 1 riders in the US right now.
Ken is also like 5 feet tall.
Leg length is a factor. I'm currently running 170s, and my fitter said normally she would scream about someone running cranks that long, but they work okay for me because I have such long legs. Still thinking about going down to 165s though because the latest science says they are faster. (Per the video I posted earlier.)