X-Nova 4025-670KV 2.5Y

Xnova brushless high performance outrunner motor for 550-620 size helicopters for sport flying on 6-8s or extreme 3d on 8-10s. Peak efficiency occurs at ~45A on 6s and ~65A on 8s. 1.High qual. Neodym Mag.heat res. up to 150 degree C. 2.Specialized wires,heat resistance up to 250 degree C. 3.Precise balanced. 4.High performance stator metal sheet. 5.Optimized ventilation. 6.High quality NMB bearings.(2 on top 1 at bottom) 7.Marked leading high effiency up to 92%. 8.Superb quality and machining of CNC parts.