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.