Ok, short guy here who recently discovered that 165mm cranks on my hybrid and vintage mountain bikes and have wondered about crank lengths for kids, especially as they transition for 24" to smaller 26" wheeled? bikes. Then I watched this video this morning and it has me thinking it is even more important than initially considered.


I'm working on a Trek 800 Sport 13" frame for my daughter and know the 170s that came on it will be too long for her when it initially fits.

Anyone out there played around with shorter cranks for kids riding smaller 26" wheeled bikes? If so, what did you use?

I realize this is a touchy subject so I post with caution...