This product is 6+1 Hall large wire out, customized for racing, with a 3.0 hub, suitable for 110 120 electric scooter tires.

Number of motor pole pairs 20 Motor requirements flat fork opening inner diameter 210 Shaft for m18 square 14

Waterproof rating: ip54 
Speed: 100-200 km/h 
High efficiency: 85~92%.