Holmes Hobbies CrawlMaster Sport 550 – 8 turn


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The Crawlmaster Sport is the SMOOTHEST budget motor built for messy, dirty, off road action. Whether on the rocks or in the dirt, the Crawlmaster Sport is perfectly at home. Great choice for young drivers, running in the muck without ruining an expensive motor, or just crawling on a budget.


  • 5 slot rotor for industry leading smoothness
  • Zero timing, universal installation and rotation direction
  • 1/8th inch shaft diameter
  • 36mm OD x 57mm length (not including shaft)
  • 215g weight
  • m3 mount holes, 25mm spacing, “540” standard
  • ball bearing on output
  • bronze bushing on end bell
  • High strength magnets

Equivalent KV:

Crawlmaster Sport 540 13t – 1850kv
Crawlmaster Sport 540 16t – 1500kv
Crawlmaster Sport 540 20t – 1250kv

Crawlmaster Sport 550  8t  –  2300kv
Crawlmaster Sport 550 10t – 1850kv
Crawlmaster Sport 550 12t – 1700kv
Crawlmaster Sport 550 13t – 1450kv
Crawlmaster Sport 550 15t – 1250kv


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