• 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 15t - 1250kv