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Reedy Sonic 540-Sp5 25.5T A-Spec Brushless Comp. Motor
Brand: Reedy
Part No: AS27494
Out Of Stock
Request Stock NotificationThe Reedy Sonic 540-SP5 25.5T A-Spec Brushless Competition Motor is engineered for racers who utilise 25.5 turn stock motors and demand consistent, efficient power. This latest SP5 iteration introduces refined stator updates that enhance torque while maintaining strong RPM performance, delivering a responsive feel throughout a run.
At its core is an in-house designed stator profile aimed at maximising torque and power without sacrificing rotational speed. High-quality copper magnet wire is sized to the regulatory limit and wound to keep resistance near the legal minimum. A heat transfer epoxy helps wick away heat to reduce internal temperatures and minimise fade over the course of a race. An oversized collector ring and thick, low-resistance solder tabs further cut electrical losses while aiding heat dissipation.
The balanced rotor uses a high-strength magnet that optimises the available dimensional rules for fade‑free power delivery. Precision stainless steel ball bearings support high RPM loads with efficiency and durability, while a quality sensor board ensures accurate, smooth commutation.
Externally, the SP5 features a lightweight two-piece CNC‑machined aluminium housing and an aluminium end cap with adjustable timing, allowing fine tuning for specific track conditions. The reduced mass helps improve vehicle handling and provides added flexibility for chassis setup. The design is completely rebuildable, competition proven, and ROAR approved.
Key Features
- CNC machined housing with optimised air cooling
- Custom high-power stator design
- Low-resistance solder tabs and collector ring
- Balanced rotor with high-strength magnet
- Dual precision ball bearings
- Aluminium end cap with adjustable timing
- Completely rebuildable
- Competition proven
- ROAR approved
Specifications
- Cells: 1–2S LiPo
- Diameter: 35.9 mm
- Length: 52.5 mm
- Shaft Diameter: 3.15 mm
- Weight: 147–151 g
- Part Number: AS27494
Secured by Stripe
The incredible performance of the SP5 starts at the heart of the motor - the stator.
Reedy's all-new Sonic SP5 25.5 A-Spec stock motors are now in stock and shipping! The introduction of minor changes to the stator improves torque for racers who utilize 25.5 motors in competition.
The incredible performance of the SP5 starts at the heart of the motor - the stator. Designed in-house, the stator's profile is intended to achieve maximum torque and power output without sacrificing RPM. High-quality copper magnet wire, sized to the maximum that the rules allow and wound with care to keep resistance near the legal minimum, is treated with heat transfer epoxy to dissipate heat and reduce internal temperatures resulting in less fade over the course of the race. An oversized collector ring not only dissipates heat, but in conjunction with thick solder tabs, reduces resistance and power loss.
A balanced rotor features a high-strength magnet that takes full advantage of dimensional rules to produce fade-free power with maximum effectiveness. The rotor is supported by precision stainless steel ball bearings to accommodate high RPM loads with exceptional efficiency and reliability. Like all Reedy Sonic motors, a high-quality sensor board rounds out the motor's interior.
Externally, the SP5 utilizes a lightweight two-piece CNC machined aluminum housing with an aluminum endcap and timing adjustability to accommodate fine-tuning for specific applications. This lightweight package is a welcome way to improve vehicle handling while improving chassis tuning flexibility.
Features- CNC machined housing with optimized air cooling
- Custom high-power stator design
- Low-resistance solder tabs and collector ring
- Balanced rotor with high-strength magnet
- Dual precision ball bearings
- Aluminum end cap with adjustable timing
- Completely rebuildable
- Competition proven
- ROAR approved
Cells: 1-2S LiPo
Diameter (mm): 35.9
Length (mm): 52.5
Shaft Dia. (mm): 3.15
Weight (g): 147-151
Key Info:
- Brand: Reedy
- Part No: AS27494
- Barcode: 784695274945
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