X-TEAM XTI-3674 4Poles Sensorless Brushless Motor Introduce Specfication Character Relevant Product Weight: 306g Number of stator slot: 12G 4P Sensored or sensorless: Sensorless Diameter of shaft: Φ3.17mm-Φ5mm Motor size: Diameter Φ36 / Length74mm Stator diameter: Φ34.3mm Available winding: Delta/Star (Δ/Y) Available for class 550-1/8th scale Buggy/On Road/Monster car,650mm-1000mm Boat, 90mm EDF ?High Quality CNC aluminum case,ensure lightweight and optimized air flow. ?High RPM,precision ball bearing. ?Low Resistance, High Power,silver plated solder tabs. ?Hand-wound for maximum copper fill,High Purity copper windings ensure maximun conductivity. ?Precision-balanced rotor will boost the efficiency and power performance of the motor. ?Nickel-plated sintered neodymium rotor for maximum motor acceleration, braking power and performance in high-temperature conditions.