Brushless motor: must be star wound sensored 21.5T or more higher turns regarding JMRCA or ROAR rule.

Battery: LiPo 2 cells 7.4V and LiFe 2 cells 6.6V. The battery pack must have plug for safety reason.

Only ZERO Timing mode of ESC is allowed. Or the ESC which does not have timing system is allowed.
(ROAR ZERO timing regulation ESC which indicates LED flashing)

Dimensions: Refer to IFMAR.　

Minimum Weight: 730g

Minimum ride height (ground clearance): 3mm

Only IFMAR and JMRCA approved body shells can be used.