This GEPRC SPEEDX2 2107.5 motor is perfect for freestyle and racing FPV pilots. It's lightweight, with good heat dissipation. Suitable for a 5 - inch frame. Model: SPEEDX2 2107.5, Kv: 1960KV/2450KV, Configuration: 12N14P, Stator Diameter: 21mm, Stator Height: 7.5mm, Shaft Diameter: ¦µ4.0mm, Size: ¦µ26.83x30.85mm, Rotor: N52H ARC, Weight: 29.5g. Includes 1 x SPEEDX2 2107.5 motor, 1 x M5 Nut, 5 x M3x8 Screw, 5 x M3x10 Screw.