I think you don't need to show us your face. It doesn't matter. ''Mr TooYoungToGoSlow'' face is his helmet. Congrats for your subs. You are doing excellent job. Keep riding! :-)
A face reveal doesn't sound too bad BUT personally I believe that when someone keeps their identity a secret, it's a lot more fun to watch their videos because it's a mysterious person, ya know? It's like a game where you have to guess someone's appearance/style. Final decision is up to you though :D
Personally I don't much care what anyone looks like, I just like your content, if you are looking to more highlight your personality in the channel a face reveal could be useful. Either way I don't much care, I'm just here for the shits and giggles. Also where is the track with the small bikes? That seems like fun.