A friend of mine recently joined us at Highland and had an awesome time. She rode my old Cannondale super v 1000, medium or small, not sure, and liked riding but definately needed something smaller. Better brakes and susp too. She found a small(seller claimed)specialized big hit for small $ but still felt it was too big. I measured it, top tube from center of steer tube/stem to center of seat clamp was 21" and seat clamp to crank spindle 17.5". Seemed like a medium to me.Does anyone make a very small bike? She is 5'0" x 110lbs. She feels more comfortable on a bmx. Maybe someone out there makes a xs w/24" wheels? Anyone have any info? Much obliged.