Changzhou Quarks Electric Motor and Appliance Co.,Ltd is established in 2002,located in Luoyang town,Changzhou city,Jiangsu province.Changzhou Quarks Electric Motor And Appliance Factory is a manufacturer of electric motor and ebike kit which can match many kinds of famous ebikes.We have standard equipments of mould making,welding and assembling etc.We have advanced production and measurement-control system.Our products passed CE,CCC certificates etc. Our main products are 12/14/16/18/20inch electric brushless hub motors,motor for shopping ebike and snow ebike,205 motor,112 motor,geared brushless hub motor,direct motor, motor for 1 wheel and 2 wheel self balancing scooter.We also supply ebikes,controller,ebike kit,lithium battery etc.