Sounds of the supermini 125 🔊 Over on my YouTube we go over the full build putting a CR125 engine into a CRF150RB. If one of the manufacturers came out with a supermini sized bike with a 125 engine, would you buy it? @GoPro 🎥 - @Red Bull USA @Red Bull @Red Bull Motorsports @All Balls Racing @MotoSport.com