Team Associated - Reedy Sonic 540-M4 Sensored Brushless Motor, 9.5 Turn Model Rockets Rocket Starter Packs Factory-built

Factory-built

Length: 286

Although fitted with the same 105mm cannon as the M60

The HS-55 set the standard for affordable performance

Team Associated - Reedy Sonic 540-M4 Sensored Brushless Motor, 9.5 Turn Model Rockets Rocket Starter Packs Factory-builtInternally, the 540 M4 is very similar to that of the 540 M3 that it replaces it produces the same linear powerband and excellent mid range feel that have become synonymous with Reedy's modified motors. However, changes can be good when they serve a purpose. In the case of the 540 M4, the inner bearing has been moved so that it is part of the can instead of the sensor assembly, which more precisely aligns the rotor within the magnetic field while