The Mega Motion Endeavor X mobility scooter is produced in both a 3-wheel (MM4001DX) and a 4-wheel (MM4401DX) version. Basically the two Endeavor X scooters are rebranded clones of Pride Mobility Celebrity X scooters, and the Mega Motion Endeavor X models shares most of the same component parts & accessories as their Pride Mobility cousins. We can help you keep your scooter running with compatible U1 battery packs, battery chargers, and much more.