It's OK Ultra, all us old guys were once 15 year old dare devils and bare the scars and pain from it in old age. I just try to warn you young guys as I sure wish I had warnings when I was young because stupidity FRIGGING HURTS when you get old! My question to you is what do you need from a monetized bike at 15? An outrageously unsafe toy you can brag about on-line with stupid stunt videos, or actual reliable safe transportation? I suggest you think long and hard on that.