I'm trawling ebay for a vintage crank for my singlespeed/fixed gear conversion.
165's get used on Velodromes so the right pedal, on the up-slope-'hill' side of the banked track doesn't hit it
when you are not going fast around the track .. like waiting for your opponent to make a mistake,
and you take advantage of it in a mad dash for 2 laps, in the Matched Sprint events.