Daniel never forgot the words he uttered that day at school when Ali's snide friend Susan asked what kind of bike he had. Daniel and Susan never got along, even after the tournament when things seemed to calm down a bit in the Valley.
So in later years when Daniel had come into some money he decided to customize an old Honda Turbo CX650, just as a way to rub it in Susan's face if they ever crossed paths again. A couple of tweaks to the engine to make it even more powerful and a re-badging and the Miyagi Turbo roared to life.
Take that Susan.