Bikers Choice Mini Speedo With LED Indicator Light - 2:1 Drive Ratio 76067
2-1/2 diameter with white face/white L.E.D.0-140 MPHCable drivenFeatures accumulated mileage, Trip 1 (check total mileage for full gas tank, can be reset to zero) and Trip 2 (calculate mileage from A to B destination, can be reset to zero)