450 class Helicopter Motor Great for Scale and Sport Flying. Light 3D If your in the hobby or want to get into the hobby. We specialize in quality components at an excellent price. Budget friendly parts that don’t break the wallets! This motor works with 450 size helicopters of many makes. Aligns Trex 450, Gartt 450, ALZRC 450, KDS 450, HK450, Gaul 450 and Blade 300 series 3D Motor Helicopter 3700kv No. Of cells: 3-4x Li-Poly RPM/V: 3700kv Max. efficiency current: 8 - 10.5 A ( 75%) No load current / 10 V: 0,5 A Current capacity: 40 A/60 s Dimensions:31 x 29 mm Shaft diameter: 3.17mm Weight: 64 g Recommended model weight: 450 class Ele. Heli Recommended prop without gearbox: 6” Comes with, 13T Brass Gear and 3.5 mm bullets male and female 450 class Helicopter 3D Motor!! If your in the hobby or want to get into the hobby. We specialize in quality components at an excellent price. Budget friendly parts that don’t break the wallets! This motor works with 450 size helicopters of many makes. Aligns Trex 450, Gartt 450, ALZRC 450, KDS 450, HK450, Gaul 450 and Blade 300 series 3D Motor Helicopter 4000kv No. Of cells: 3-4x Li-Poly RPM/V: 4000 Max. efficiency current: 8 - 10.5 A ( 75%) No load current / 10 V: 0,5 A Current capacity: 40 A/60 s Dimensions:31 x 29 mm Shaft diameter: 3.17mm Weight: 64 g Recommended model weight: 450 class Electric. Heli. Recommended prop without gearbox: 6” Comes with, 13T Brass Gear and 3.5 mm bullets male and female Can use in Helicopters, some boats, some special RC Cars, Fpv , rc plane, drone