Holmes Hobbies Crawlmaster Magnum 540 20T


Collections: Motors

Product type: Motor

Vendor: Holmes Hobbies



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CrawlMaster Magnum 540 20t- High torque, smoothest startup in all our products, wheelspeed similar to TorqueMaster Pro 540 30t.

Please allow 2 weeks for assembly and manufacture. These are currently made to order.

The Magnum is a performance oriented brushed motor designed with a larger rotor diameter and more powerful Neodymium magnets, when compared to the regular TorqueMaster and CrawlMaster Pro 540. This motor was born out of prototype work for our team drivers and a love for the hobby.


  • 200c rated Neodymium Magnets
  • 5 slot 28mm diameter armature
  • Holmes XX springs
  • Holmes soft copper brushes
  • 6.2 ounces, 175g
  • Standard 540 mount
  • 36mm diameter, 52.5mm length
  • 1/8" shaft
  • fully rebuildable and compatible with many Holmes 540 motor endbell parts
  • XXXXXrpm @ 12v
  • XXXX amp no load @ 5v
More information about motor rotation and timing can be found on our blog.
Every brushed motor carries a 30 day warranty to cover manufacturing defects. Damage caused by improper gearing is not covered under warranty.
Please check here to see if you will need to change your gearing. If your vehicle is not listed, please contact us.