My 5yo boy, Tyler, recently learned to ride his big-boy bicycle without the training wheels. After such, I received constant reminders (from him) that I had promised to get him his own dirtbike. One of the local riders hooked us up with a PW80. (He loves the bike) Tyler was a bit too big for the PW50/JR50 bikes, and the PW80 is a bit too big for him. Although it isn't the ideal size, what's available for sale on the market dictates what you have to choose from. In his case, it was the PW80. Yesterday was his second day riding, and he's really doing well. He gets that poor PW80 screaming (in first gear, LOL) in the straight sections. He had several "races" with me yesterday. He strategy was to wait for me to slow down for him, then twist his bike wide open and pass me WOT. A couple times he missed a turn and blasted through some bushes. According to him, his bike is faster since it says "80" and mine only says "20"... bummer. Here's some pics (undoctored): Also, we're having trouble finding gloves that fit him (he's a bit smaller than size 5) and goggles that don't smash his eyes. We'll just have to keep looking. The chest protector came with the bike, and Tyler swims in it... but he really likes having gear like dad.