HobbyStar 4585 4-Pole Brushless Sensorless Motor, 1/7 Scale - 1580KV

SKU: 375-21-158

Availability: Out of stock




The HobbyStar 4585 motor is a behemoth powerplant for larger-scale applications such as the Traxxas Xmaxx/XO1 and any other application where an 1/8-sized motor is not enough and a 1/5 can is too large. 4-pole design and a 12-slot stator provide unbelievable torque. High-quality features like a beautifully machined 6061 T6 billet-aluminum can, buttery-smooth ABEC5 bearings and a 85mm length make this the ultimate motor for your large-scale rig.


NOTE: Aftermarket mount is required for use in the Xmaxx as the stock motor uses a unique "pin" mounting system.



  • Brushless, sensorless 4-pole motor
  • 12-slot high-torque stator
  • CNC machined 6061 T6 billet aluminum heatsink can
  • High-purity copper windings maximize efficiency
  • High-RPM ABEC5 oversized bearings
  • Precision balanced rotor for smooth operation, reliability and maximum RPM
  • Stator-Super Thin (0.2mm) laminations
  • Removable/replaceable rotor
  • Precision engineered for maximum energy conversion
ProductWattsMax VoltageMax AmpsRotor PolesIOResistance KV (RPM/Volt)Max RPMLength (mm)Diameter (mm)Weight (g)Shaft Diameter (mm)Shaft Length (mm)Connectors
4585/2Y 3600 <26 142A 4 3.5A 0.0073 1580 50,000 85 45/48
with fins
570 5 17 6.5mm gold


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Will this motor handle 8s LiPo
If geared correctly it will handle 8s. High voltage systems generate heat, and very quickly if not geared correctly, which will lead to component failure due to overheating. If running 8s, i'd suggest starting your gearing very conservatively and monitoring temps as you adjust.
RCJuice answered on December 13, 2019
The Xmaxx has a non-standard motor mount. What is the hole pattern on this motor? I saw another answer that said it would fit without modification.
Due to the XMAXX's unique motor mount design, this motor will require an aftermarket motor mount and modification to be installed in the XMAXX.
RCJuice answered on December 19, 2019
Does it have 3mm mounting holes or 4mm?
This has the 4mm mounting holes.
RCJuice answered on November 25, 2019
Will the stock motor mount fit this motor?
The motor does require an aftermarket mount due to the unique mounting method of the stock motor.
RCJuice answered on November 14, 2019

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