Allie's bike is coming along pretty nicely. I just had her give it a test ride and she seemed pretty excited to be able to ride a "Big Kid" bike. There were a couple of changes I had to make to the frame from the original design. When I first put 16" wheels on the bike the pedals were, as I had previously feared, too close to the ground. However when I put the 20" wheels on the frame they were at a perfect height. The pedals were still low enough that I could have a much lower seat than normal but high enough that they allowed for pedaling without any fear of them striking the ground. Unfortunately by using the larger wheel size from the beginning it means there is no opportunity for the bike to grow. Which in hindsight may have been an idea that was not completely feasible in any case. The biggest problem with the 2" larger wheel radius is that it places the seat at 17" above the ground instead of the desired 15". While the seat height is an inch shorter than her current bike (with 12" wheels!), she still has to jump a little on the bike to get on it and start riding. Anyhow, it seems that for anything out of the ordinary there will need to be some form of compromise and in this case a little inconvenience is worth having a bigger bike than what she currently has. Now all that needs to be done is cleaning up the brass, adding the brake mounts and getting it to the powder coater!