Join Date: May 2011
Location: College Park, GA
Bikes: Orbea Opal, Co-Motion Hammerhead, Specialized S-Works Langster
Crank length is a matter of preference for the most part. Everyone is different and really it's hard to notice a difference. There are general rules people follow, but like all general rules, they apply the average rider. I use 165 cranks on my track bike and 172.5 on my road and tandem. I'm a former track sprinter and like to spin on the road and like my cadence over 100 as much as possible. My wife with a 30" inseam has 172.5 on the tandem and 170's on her road bike, however, she likes to pedal closer to 70. The easiest thing to do when we're riding together is use a little bigger gear for me to help slow things down on the straights and a little smaller on hills then she would like and we're both happy. Really, whatever the bike comes with will most likely work and I wouldn't put much more thought into it than that.
As for the amount of information out there... Try not to let it bother you. Get the best that you can afford and go out and have fun.
Last edited by buster110; 05-12-11 at 08:45 AM.
Reason: I suck at proof reading