Features: Hight RPM precision bearings Unadjustable Timing Compatible with any Sensored/Sensorless ESC; CNC Machined Billet T6 Aluminum Heatsink Can; Hight Purity Copper Windings Maximizes Conductivity; Hight Power Solder Tabs; Removable/Replaceable Rotor; Powerful Sintered Neodymium Magndet; Precision Engineered for Maximum Energy Conversion; Meet IFMAR/ROAR rules Specification: Brand:Surpass Model:Blue 540 Desigin: sensored Rotor Poles: 2 Shaft Diameter inches: ???.175 Size: 35.8*50.2mm Weight:175G Turns:4.5T RPM/Volt: 7620KV Watts:490W Power supply: 1-2S LiPo battery .
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