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Associated Reedy Sonic 540-Sp5 25.5 Turn Brushless Motor (Associated 27478 | ASC27478)

Model: Associated 27478
Dist. #: ASC27478   SKU: ASC27478

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List Price:  $149.00
Price:  $123.99
You Save:  $25.01 (17%)

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Updated on Jul 8, 2025 10:10:13 PM

Reedy Sonic 540-Sp5 25.5 Turn Brushless Motor...
Reedy Sonic 540-SP5 25.5 Turn Brushless Motor

Reedy's Sonic SP5 stock motors are now readily available! Including an unique style, Reedy's Sonic SP5 integrates many features that will put it at the top of the pyramid when it pertains to equip motor performance.

The amazing efficiency of the SP5 starts at the heart of the motor--the stator. Developed in-house, the stator's profile is planned to accomplish optimum torque and power output without compromising RPM. Top quality copper magnet wire, sized to the optimum that the rules enable and wound with care to keep resistance near the legal minimum, is treated with heat transfer epoxy to dissipate heat and decrease internal temperatures resulting in less fade over the course of the race. An extra-large collector ring not only dissipates heat, however in conjunction with thick solder tabs, reduces resistance and power loss.

A balanced rotor includes a high-strength magnet that maximizes dimensional rules to produce fade-free power with optimum efficiency. The rotor is supported by accuracy stainless-steel ball bearings to accommodate high RPM loads with extraordinary effectiveness and reliability. Like all Reedy Sonic motors, a premium sensing unit board rounds out the motor's interior.

Externally, the SP5 utilizes a light-weight two-piece CNC machined aluminum housing with an aluminum endcap and timing adjustability to accommodate fine-tuning for specific applications. This light-weight package is a welcome way to enhance vehicle handling while enhancing chassis tuning flexibility.


Features:
  • CNC-machined housing with enhanced air cooling
  • Customized high-power stator style
  • Low-resistance solder tabs and collector ring
  • Well balanced rotor with high-strength magnet
  • Double accuracy ball bearings
  • Aluminum end cap with adjustable timing
  • Completely rebuildable
  • Competitors proven
  • Built to ROAR requirements


Requirements:
  • Cells: 1-2S LiPo
  • Diameter (mm): 35.9
  • Length (mm): 52.5
  • Shaft Dia. (mm): 3.15
  • Weight (g): 147-151


Item Developed: 06/19/2023


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