Supplier: transmission controller systems, including lofandi phuture and lofandi naw classic series, such as 3 speed internal gear hubs,5 speed internal gear hubs,7 speed internal gear hubs,10 speed internal gear hubs,11 speed internal gear hubs and so on. 2.solutions of product about anti x device lock security control, having a global original creation of hub lock with core technology. our products are widely used in consumer and sharing markets such as scooter, e bike, electric vehicles, bicycles, and wheel chairs.