4X Racerstar 2507 BR2507S Fire Edition 2700KV Brushless Motor For 250-300mm RC Drone FPV Racing Frame KitDescription:Brand: RacerstarItem name: Fire Edition BR2507S 2700KV brushless motorRPM/V: 2700KVHeight: 20.5mmWidth: 30.5mmShaft diameter: 5mmMotor mount hole size: M3Screw thread: clockwise (CW)Weight: 40 gramsLipo battery: 1800KV 3-6S;2400KV 3-5S;2700KV 3-4SRecommend ESC: 45AUsage: for 250-300mm RC drone FPV racing frame kitFeatures:Stainless steel motor shaftLong life Japanese NMB ball bearingsOxygen free copper wireCNC machined aluminum casePatented balance techniquesUnique wiring methodPackage included:4 x Fire Edition BR2507S 2700KV brushless motor