81cc High Performance 50 mm Cylinder Head for GY6 139QMB Scooter Engines Drive Medical Daytona 4 (S45001/S45002) This is the replacement key

This is the replacement key for the Drive Medical Gladiator

The Electron Wheel is relatively lightweight at less than 20 lbs

The display shows the scooter speed

Please refer to the photographs for a better view of the seat mounting arrangement

81cc High Performance 50 mm Cylinder Head for GY6 139QMB Scooter Engines Drive Medical Daytona 4 (S45001/S45002) This is the replacement keyThis is our high performance 50 mm cylinder head by NCY. The 50 mm cylinder head is for use with NCY 81cc cylinder kits, and is compatible with 50cc GY6 139QMB engines. Let Monster Scooter Parts be your source for NCY scooter parts and accessories. 1100 1239