This is the 17.5 Turn Hobbywing Xerun V10 G3 Competition Stock Sensored Brushless Motor. The V10 G3 Motor line has seen significant improvements over the previous G2 series, for both the Modified and Stock motors. Some updates include an updated can design that promotes easy of maintenance, a special shell design for maximized cooling, high-performance stator core, heat-resistant wire (200¡ÆC), lower weight and more.
Features:
Specifications: kV: 2830 LiPo: 2-3S Resistance: 0.0402 No-Load Current (A): 3.9 Max Output Power (W): 152 Current @ Max Output Power (A): 42 Diameter/Length (mm): 35.9mm (1.41in)/50.5mm (1.99in) Shaft Diameter/Length (mm): 3.17mm (0.125in)/14mm (0.55in) Stock Rotor: 7.3-12.5-USensored: Yes Brushless: Yes Poles: 2 Weight (g): 131 Applications: Stock 1/10 On-Road Racing
http://hobbywing.com/products/enpdf/XERUNV10G3.pdf