2507 1800KV Brushless Motor comes with stainless steel motor shaft, CNC machined aluminum case and unique wiring method. Specification: Model: Darwin129 Item Name: 2507 1800KV 3-6S Brushless Motor Quantity: 1 PC Version: CW Screw Thread / CCW Screw Thread ( Optional) KV: 1800KV Input Voltage: 3-6S Lipo Support Height: 20.5mm Width: φ30.5mm Shaft diameter: φ5mm Motor mount hole size: M3 Cable Length: 115mm appro. Weight: 43.2g Application: Original Parts for Darwin129 7" Long Range PNP