TOWER PRO 3015-7T BRUSHLESS OUTRUNNER 1000 KV3015-7T motor Weight : 133 gDemension : Ôø†37.2*60.3 mm Weight : 133 g Voltage : 10 V Idle Current : 2.2 A Battery : 3-4LIPO KV : 1000 RPM/V Shaft Diameter : Ôø†5.0 mm Max Efficency Current : 30 A Max loaded current : 40 A/60s Max Power : 470 W/60s Suggest propoller size : 10.5