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Reedy Sonic 540 M4 Brushless Motor 8.0T Modified

Reedy Sonic 540 M4 Brushless Motor 8.0T Modified

Brand: Reedy

Part No: AS27440

133.82 RRP €140.86

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The Reedy Sonic 540 M4 Brushless Motor 8.0T Modified (AS27440) advances a proven competition platform for 1:10 racing. Retaining the renowned linear powerband and strong mid-range feel of the M3, the M4 refines the design for improved precision, balance, and weight distribution.

Internally, the inner bearing has been moved into the can from the sensor assembly. This aligns the rotor more precisely within the magnetic field and helps reduce noise and vibration for a smoother, more efficient drive feel.

Externally, a shortened can centralises chassis weight, while revised construction trims approximately 5–10 g. A balanced, high-strength rotor delivers powerful, fade-free performance, and a range of optional rotors allows fine-tuning for specific tracks and conditions. Precision stainless steel ball bearings are chosen to reliably handle high RPM loads. Built to ROAR/EFRA/IFMAR specs, the Sonic 540 M4 is ready for top-level competition.

Features

  • CNC-machined lightweight can
  • Aluminum end cap
  • Lightweight design
  • 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: 1–2S LiPo
  • Diameter: 35.9 mm
  • Length: 50.3 mm
  • Shaft Diameter: 3.15 mm
  • Weight: 160–170 g

REEDY SONIC 540 M4 BRUSHLESS MOTOR 8.0T MODIFIED

After months of development, Reedy is proud to announce the release of the Sonic 540-M4 Competition 1:10 Brushless Motor!

Internally, 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 reducing noise and vibration.

Externally, the motor has been shortened, which results in more centralized weight distribution within the chassis. The reduced length, combined with improvements to the can design, results in a 5-10g reduction in weight.

A balanced, high-strength rotor provides powerful fade-free performance. A variety of optional rotors are available to fine-tune for specific applications and tracks. Precision stainless steel ball bearings have been fitted to reliably accommodate high RPM loads.

Features

  • CNC-machined lightweight can
  • Aluminum end cap
  • Lightweight design
  • 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: 1-2S LiPo
Diameter (mm): 35.9
Length (mm): 50.3
Shaft Diameter (mm): 3.15
Weight (g): 160-170

 



Key Info:
  • Brand: Reedy
  • Part No: AS27440
  • Barcode: 784695274402
  • Fitment: Option Part
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