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Tengu 4525HT / 510kV (12-14S)

Hand-wound EGODRIFT Tengu 4525 HT (High Torque) Series 510kV brushless motor for 700-800mm class helicopters, such as the XLPower Specter, SAB Goblin 700, Align T-Rex 700, Mikado Logo 700, or Gaui 700.

Our 4525HT series fllls the gap between the 4530HS and 4530HT motors, at the weight of a 4525 stator. A popular choice for lighter setups (like the Goblin RAW) and builds where weight is a primary concern or the ultimate power of the 4530HT is deliberatly traded in for an all around more balanced performance experience.

Please select the correct external shaft length below:
35mm fits XLPower and SAB Goblin models.
55mm fits Align, Mikado and Gaui models.
$339.99
SKU: tengu-4525ht-510kV
In stock

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$339.99
Details

EGODRIFT Tengu high-performance brushless motor for RC Heli are the result of one year of development and testing. The 4525HT Tengu comes with a kV rating of 510kV and fits all 700-800mm class helicopters, such as the XLPower Spectre 700, Goblin 700, T-Rex 700, Align 700, Mikado 700 or Gaui 700 (and various other models).

All CNC parts are processed in our EGODRIFT factory on our Japanese Tsugami precision CNC machines for the utmost in precision and quality. We apply the same high standards to all other components used in the making of this motor, so it features EZO bearings, a custom made stator and special high temperature copper wire.

External length of the shaft: 35mm or 55mm (please choose)

EGODRIFT Tengu 4525 HS/HT Product Dimensions
Specifications
  • Manufacturer: EGODRIFT
  • Stator size: 4525
  • Motor configuration: 12N10P
  • Motor weight: 473g (16.23oz)
  • Wire colour: Copper
  • Motor wire type: High temperature copper wire
  • Motor wire: 1.3mm
  • Motor kV: 550 kV
  • Motor shaft: Hardened Steel
  • Shaft diameter: 6.0 mm
  • Mounting hole pattern: 4xM4(30)
  • Laser Design: EGODRIFT Stickerbomb
  • LiPo cells: 12S, 14S
  • Stator diameter: 45 mm
  • Stator height: 25 mm
  • Stator lamination: 0.15 mm (+)
  • Body Length: 66.58mm (2.19 inch)
  • Diameter: 56.40 mm (2.22 inch)
  • Idle current: 3.5A
  • Maximum Current: 125A (Peak: 230A / 2 seconds)
  • Maximum Power: 6000W (Peak: 11040W / 2 seconds)
  • Internal resistance: 13 mOhm
  • Connection: Wire / Gold plated plugs
  • Designer: Yutao Zou

What's in the box

  • 1x Tengu 4525 HT Series/510kV motor
  • 35mm or 55mm exterior length shaft (please choose)
  • 3 x Gold plated connectors, Male
  • 3 x Gold plated connectors, Female
  • 4 x Mounting screws
  • 1 x Bell securing screw
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Reviews
    • Verified Review

    Weight to power ratio

    I was between the 4530HT and the 4525HT, and decided to go for the 4525 size due to weight considerations. I am trying to keep my setup lightweight and powerful - and the 4525HT does the trick fr me as it's about 50g lighter than the 4530 and although I was a bit sceptical, there is absolutely no moment where I feel I'd need more power, there's plenty in it

    Review by Dean M.

You're reviewing: Tengu 4525HT / 510kV (12-14S)

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Product FAQ

Product Questions

What makes HAND-WOUND motors better?

At EGODRIFT we rely on the art of hand-winding motors for every single one of our models (with no exception) for a variety of reasons:

1) Fill grade - packing more copper
While machine winding would certainly be a whole lot faster, cheaper and easier, there are a few technical downsides to using winding machines: The biggest one of them being the achievable fill grade = how much copper (wire) you manage to squeeze into the bell around the stator arms. A winding machine relies on bigger (and static) tolerances to wind the wire lobes around the stator and cannot adjust it's winding routines as good as one of our winding experts can with every lobe. They wrap, pull, push and fit the wires around the stator to manually reduce the empty space between windings to the maximum, thus achieving a higher fill grade in the bell than a machine could. Think of empty space inside a bell and between the stator arms as wasted potential. And for copper on the stators the one thing that holds true is: the more the better.

2) Quality control - Each motor is going through our experts hands
By winding each stator manually, we ensure that all components - the stator itself, as well as the wire, and the finished assembly - is going through the hands of our winding experts for several minutes. Any imperfection in the material or the assembly will immediately be noticed and any products that fail our rigorous standards when it comes to winding our stators can be discarded immediately.

3) True craftsmanship - and not mass production
Our lovely winding ladies have been building motors for us for well over a decade, and we will continue to rely on hand-winding for many years to come. We believe motor winding by hand is an art, and a skill that needs to be preserved. Each one of our motors is a piece of true craftsmanship, not the result of mass production. And we love our staff, and feel it's our responsibility to secure their jobs for the community.

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Total rating: 5.0

What is the difference between the HT and the HS motors?
The newly released HT (High Torque) Series offers quite a considerable power increase over the already powerful HS (High Speed) Series motors. This increase does come at the expense of a slight reduction in flight time. The HT Series motors are designed for extreme tournament pilots, power enthusiasts or heavy/multirotor head setups - and are run by our top competition pilots, such as Kenny Ko (rocking the 4530HT/550kV ) and Kan Poonnoi (flying the 510kV counterpart).
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Total rating: 4.0

Will the HT motors replace the HS motors in the future?
The Tengu HT Series motors offer the maximum available power and thus are not necessarily a replacement for their HS counterparts, or their successors, they rather have a slightly different orientation - for most pilots and applications, or when longer flight times are the goal, the HS Series will provide a perfect balance of power and efficiency. Should even more power be required or needed, the HT Series is the go-to choice.
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Total rating: 5.0

What would be the best motor for the agile 7.2 for f3n and f3c competition?
The overall best motor for the KDS Agile 7.2 and F3N/F3C flights is probably the Tengu 4530HS/510kV, as it will give you a great balance of power and flight time. It lies well within the recommended kV range (500-540kV) listed by KDS and will cope with the slightly larger weight of the heli easily. An alternative to this, if weight was a prime focus, would be the 4525HT/510kV. Please make sure to select the 6x55mm (longer) shaft option for either, as the manual for the 7.2 lists a minium recommended shaft length of 41mm.
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Will it fit on a Synergy 696?
As our Tengu motors feature a very slim profile, any model of the 700-800 class (all Tengu 4525 and 4530 HS / HT models) will fit in the body of the Synergy 696.
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Total rating: 5.0

What does 12N10P mean? I need this for setting up my YGE 205 telemetry capabilities
This abbreviation refers to the layout / winding scheme of the motor. The first part (N) translates to the number of arms (wire wound poles) on the stator, whereas the second part shows the number of magnets (permanent magnetic poles) on the rotor. So a 12N10P motor features a stator with 12 arms and 10 poles (magnets). Usually the number required for the esc is the second part.
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Total rating: 4.9

Can you do a custom wind / motor with special kV for me? What are the costs?

Thank you very much for considering us for your project. As all our motors are hand wound, it is fairly easy for us to fulfill your special kV requirements with a special wind.

Finishing your custom kV motor usually only takes a day, and is offered by us free of charge. Please send us a quick message stating the model (stator size) and kV you are looking for and we'll get back to you in no time.

We're also happy to consult you on your motor choice if you send us a small description of what you're trying to achieve with your setup.

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Total rating: 4.5

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