Betafpv 1103 brushless motors are suitable for Betafpv 2S frame racing drone by BETAFPV Hobby, which is the first brushless motor reach to 11000KV.
Size of motor: 13.5mm*13.5mm*16mm. Weight: 3.25g/1pc. Shaft Diameter: 1.5mm.
Voltage: 7.4V, 2S Lipo battery. KV (rpm/V): 11000.
The motor mount holes of 1103 motor is 8.5mm, for Betafpv 2S FPV frame only, not for the other 80-110mm frame.
Please read the Precautions and Recommend Parts before built a quadcopter drone. It is better for beginner to build under a experience FPV player. If you occur the issue of motor not spin up properly, go to BETAFPV Support Freshdesk or contact us for help.