The robotic drivetrain plays an important role in robot tournament. This study explores the performance between X drive and Standard drive in the aspect of mobility, traction and precision. Moreover, this study applied 2 different gear cartridges to motors and investigate the performance in these three aspect as well. The result indicated that the X drive performance higher mobility. Additionally, the X drive showed better precision in autonomous performance. It also revealed that the Standard drive has better performance in the aspect of traction. As to different gear cartridges, 36:1 cartridge showed great traction performance than 18:1. Different drivetrains have individual’s privilege. The choice of drivetrain must depend on the tournament theme.

Keywords : robot, drivetrain, VEX