What sizes does it come in?

This E-Bike comes in one size: perfect. 22" wheels help keep the bike low enough for smaller riders, and the adjustable seat post raises the saddle up for taller ones. We've had test pilots from 5'0" to 6'4" cruise comfortably for miles.

The "standover height" is 28.25" so check your inseam to make sure you'll fit over the bike just fine.