Reedy 540-SL4 Sensorless 4-Pole Brushless Motor (3300kV)

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Reedy 540-SL4 Sensorless 4-Pole Brushless Motor (3300kV)
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The Reedy 540-SL4 is a great upgrade option for your sensorless brushless RTR! Due to its sensorless 4-pole configuration, the 540-SL4 operates powerfully, efficiently, and reliably in a variety of vehicles and ESC applications.

The 3300kV rating provides plenty of speed with 2S LiPo batteries. But install a 3S LiPo battery for insane speeds that are barely controllable! A high-strength rotor provides plenty of torque and resists overheating better than 2-pole alternatives.

Flexible silicone wires ease wire routing in tight spaces and work in conjunction with 3.5mm bullet connectors to reduce power-robbing resistance and heat. Triple insulated windings, a hardened steel shaft, and oversized ball bearings enhance reliability to keep you out of the pits and on the track.

  • Powerful 4-pole sensorless design
  • Oversized precision ball bearings
  • High-strength rotor
  • Hardened steel shaft
  • Triple insulated windings
  • Flexible silicone wires
  • Low-resistance connectors
Cells: 2-3 LiPo, 4-9 NiMH
kV rating: 3300
Applications: 1:10 buggy, truck, touring car
Dimensions: 52mm x 36mm
Shaft Diameter: 3.17mm (1/8")
Weight: 211g
Power Wires: 12-gauge silicone
Connectors: 3.5mm

This product was added to our catalog on December 16, 2016

John Gilbert
Verified Owner
Wednesday, Feb 6 2019 (about 4 years ago)
Reedy 540-SL4 Sensorless 4-Pole Brushless Motor (3300kV)
A great motor for the price! Lots of torque, on 3s this little guy is very powerful and surprisingly fast too. On 2s you have lots of torque but very little top end. Not for all applications, but just great for backyard running on rough stuff in the mid 20s. Has been durable and trouble free. Bought on a whim, would buy again.
Verified Owner
Tuesday, Oct 22 2019 (about 4 years ago)
Reedy 540-SL4 Sensorless 4-Pole Brushless Motor (3300kV)
Awesome motor. Used in a hill climber build 4ws. With 120amp esc.
That Aussie Guy
Tuesday, May 31 2022 (about a year ago)
Reedy 540-SL4 Sensorless 4-Pole Brushless Motor (3300kV)
Stout little motor!

We have this fitted our stampede 2wd basher running on 7 cell nimh. We were able to gear it 19/90 running stock tires and the temps are between 120 and 130. Even pushing it in grass the temps only start to rise to the 130 mark!

We had to gear the Titan 14/90 to keep the temps in check doing the same kind of driving/bashing which had a top speed of 23 to 24 miles per hour.

With the above gearing the truck is hitting about 28-30 miles an hour which is enough speed for our needs without overpowering the truck and breaking parts all the time. And you can wheelie on comand even going down the street at over half throttle!

Not much faster than the stock Titan 12t motor but its an absolute torque monster compared the brushed motor

Great cost effective upgrade for a stock brushed RTR!

Feels alot quicker to drive and can hit bigger jumps with less run up due to is ballistic acceleration!