Originally Posted by
noglider
@
cyccommute, that's interesting. My spouse can't stand either, and her form looks strange. I wonder if shorter cranks would help her. I might do some experiments.
Here’s a post on how I shorten my wife’s cranks. Threading the cranks is the most difficult part for me as it’s hard to keep the tap straight. Discussion in that thread (heated at times
), leads me to try again with using the drill press chuck to thread the crank without putting it under power.
Alternatively,
I had BikeSmith shorten cranks for our tandem which I provided and it was only about $80 including shipping. He sells whole cranks for a reasonable price. Another alternative is
da Vinci Designs Tandems. The link above is for a crank that has 3 holes in either 130/150/170mm or 120/140/160mm triple hole cranks. da Vinci is a Denver company and I’ve looked at their cranks. They are well made and an interesting concept.
And the pedal holes are straight.