Current Projects chat and miscellany

So crank length does make a difference, but only to what cadence is comfortably maintained, but not to actual power output?

Yes, but bear in mind that your self-selected preferred cadence will probably change if you change crank length, it turns out that people tend to have a preferred (and limiting) foot speed, not repetition rate. You can test the limit fairly easily by doing low gear spin outs on the rollers - you'll probably find that if you max out at 170rpm on 175mm cranks, you can jump straight onto 170mm cranks and hit 175rpm, i.e. you're not limited by ω itself but by the product ωr

Surely the 'leverage' issue is just the gear ratio, which crank length contributes a bit to

Exactly