"Inspired by Franco Sbarro's hubless wheels. Hubless wheels work by fixing the rotating parts (brake ring, bearings, hubless rim) onto the outer side of a non-rotating inner ring that attaches to the motorcycle's swingarm or forks. Advantages include decreased unsprung weight, reduced structural stress (no spokes to transmit forces through), increased braking leverage, more accurate steering, reduced vibration and a lower center of gravity." - Kurt Starnes