I have a few suggestions for fitting your eldest to the bike. First of all, it's a bad idea to use saddle fore/aft adjustment to rectify improper reach. Too-far-forward saddle might put undue pressure on the cartilage of the knee cap, and cause overuse injury. I'd always start with the saddle height and fore/aft adjustment first before moving on to other parts. If she couldn't reach the handlebar after you dial in the saddle position, you might have to bite the bullet and get another bike. You could try the zero-setback seat post if doesn't upset her knees. Here's a good book on bike fitting and common medical problems for cyclists: http://www.amazon.com/Pruitts-Complete-Medical-Guide-Cyclists/dp/1931382808 As for the problem with the road brake levers, you might want to check if spacers are needed to reduce their reach (see picture below). If your road brake levers don't come with spacers, you could try using stacked-up foam pads instead. Finally, I have a pair of custom pedals that might solve the problem for your younger kid. I used them to study the effect of artificially-induced leg length discrepancy. The pedal surface could be raised as high as 4 cm using a huge stack of washers. I'll see if I can find them after I get home tonight.