Originally Posted by
Hermes
I use 165 mm on my track bike and 172.5 on my TT bike. If I get a new power meter for my TT bike, I would switch to 165 cranks.
I have tight hamstrings and a bad back. Shorter cranks are better for me when riding with a reduced hip angle.
Having said that, old school thinking was longer cranks and bigger gears for time trials and pursuit.
Hermes, were you Pursuiting on 165's?
Fortunately I'm running Hollowgram cranks & a P2Max meter. I picked up a set of 165mm arms on eBay and per P2Max support there is no recalibration needed with the arm change (I have the necessary tools). Very easy swap, don't even need to pull the BB.
I put off trying this for quite a while due to the remnants of that old school thinking. I'm in full on experiment mode this winter.
