Due to popular demand, short stack 10.5 and 21.5 versions of the Reedy Sonic 540 M3 brushless motors are now being offered! Features include a competition proven short stack stator wound with pure copper magnet wire and low resistance collector rings which walk the edge of legality in exchange for max power output and RPM. Despite being designed for 1S applications, short stack motors can create a power advantage in 2S applications such as F1 and 4WD GT classes. Like all Reedy Sonic 540 M3 motors, these new models feature a three piece CNC machined motor can to reduce weight while improving airflow, component fit, and bearing alignment. Heavy duty silver plated solder tabs reduce resistance, feature a cupped profile to aid soldering, and are well supported to prevent internal connections from fatiguing over time.
A balanced, high-strength sintered rotor provides powerful, fade-free performance thanks to improved manufacturing processes. To fine-tune for specific applications and tracks, a variety of optional rotors are available. Lastly, larger precision stainless steel ball bearings have been fitted to accommodate high RPM loads with improved reliability. The Reedy Sonic 540-M3 Short Stack motors are now available for sale.
- 284 – Reedy Sonic 540 M4 Short Stack 21.5 – $90
- 285 – Reedy Sonic 540 M4 Short Stack 10.5 – $90