I've done reading about crank length and arguments for and against shortening up, but up to this point it's been just academic curiosity -- I have 175mm cranks on both my road and tri bikes and haven't really been bothered by them so never felt there was a convincing enough argument to push me to spend on a switch.
But this winter I plan to upgrade my Tiagra road bike to 105, meaning I have the opportunity to choose a different crank for my tri bike (would move current tri bike 105 crank to roadie and put whatever new one on the tri bike), and am wondering again if I should shorten my crank.
So the question: Are there any very compelling reasons I should consider not dropping from 175 to, say, 170(?) on my tri bike? And then, since I'm doing all this wrench work anyway, might it behoove me to switch lower on my roadie as well?
Thanks for the help.
But this winter I plan to upgrade my Tiagra road bike to 105, meaning I have the opportunity to choose a different crank for my tri bike (would move current tri bike 105 crank to roadie and put whatever new one on the tri bike), and am wondering again if I should shorten my crank.
So the question: Are there any very compelling reasons I should consider not dropping from 175 to, say, 170(?) on my tri bike? And then, since I'm doing all this wrench work anyway, might it behoove me to switch lower on my roadie as well?
Thanks for the help.