I bought this for our six year old son who's an advanced mountain biker for his age. He loves this bike. It fits him perfectly (48" tall and about 45 lbs) and you've done a great job to keep the weight down to a respectable level which is key for him since he doesn't weigh too much. The geometry and frame design is fantastic and largely why I chose the Zulu Three Heir. His inaugural rides on it were in Sedona for the week over Spring Break which allowed him to ride on a variety of conditions - from buff, flowy loam to sweet technical ledges, drops, etc and everything in between (think Slim Shady, Templeton, Easy Breezy). The rake of the bike is outstanding. He was able to roll some large drops that he couldn't jump that I wasn't sure would be makeable for him. And, for jumping/dropping, the degree of rake provides a bit of extra stability without taking away from the agile nature of the bike. He also loves going to dirt jump and downhill parks. He's ridden in a few dirt jump parks and he's psyched on how it handles. I know it will be great on true downhill trails once some parks start to open up this summer. All in all, he couldn't be more stoked. It's a super sweet bike that has perfect balance for all the usual types of riding li'l rippers love.