ROAR approved Reedy Sonic 540-M3 Competition Brushless Motor, 4.0 Modified
For the last 12 months, the Reedy development team has been working
behind the scenes utilizing a combination of new ideas and proven
concepts to create the all-new Sonic 540-M3 Competition Brushless Motor.
On the outside, the 540-M3 appears very similar to the Mach 2, but look
closely and you will realize that nothing has been carried over from the
previous model. A 3-piece CNC machined can reduces weight while
improving airflow, component fit, and bearing alignment. Heavy-duty
silver-plated solder tabs are not only thicker to reduce resistance, but
are also cupped to aid soldering, and well supported to prevent
internal connections from fatiguing over time.
Inside, changes are less obvious but result in huge performance gains.
Sonic 540-M3 Spec motors walk the edge of legality in exchange for
maximum power output and RPM thanks to an all-new stator design, pure
copper magnet wire, and low-resistance collector rings. Available
short-stack 17.5 and 13.5 versions suit 1S-powered pan cars and under
the right circumstances can create a power advantage in 2S-powered
buggies, trucks, and touring cars.
Unlike Spec class racing, Modified is about controlling power. Sonic
motors have always been known for their linear power delivery and the
540-M3 does not disappoint. A new stator design improves mid-range feel
which both on- and off-road racers will appreciate.
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.
Several versions are available and all meet ROAR, EFRA, and IFMAR specifications.
Features:
- CNC machined, lightweight 3-piece can
- Aluminum end cap
- Low-resistance, silver-plated solder tabs
- Optimized air cooling
- Dual-precision ball bearings
- Balanced rotor
- High-strength magnet
- Adjustable timing
- Completely rebuildable
- Competition proven
- Built to ROAR/EFRA/IFMAR specs
Specifications:
Cells: 1S-2S LiPo
Diameter: 35.8mm
Length: 52.7mm
Shaft Diameter: 3.15mm
Weight: 170-176g