Description:4WD: Weight: About 490g Bearing Weight: 2.5kg Speed: 1.3m/s (max)
Size: 178*145mm 3WD: Weight: About 300g Bearing Weight: 1.5kg Speed: 1.3m/s (max)
Size: 143*145mm Motor: Voltage: 7-13v Battery: 3S Lipo Battery (NOT INCLUDED) Speed: 500RPMCurrent: 220m A Package:1* Robot Car Chassis