ordinary differential 16-tooth/18-tooth electric tricycle gearbox universal motor tooth bag rear axle differentialgearbox

high and low grade, high power, full power, easy climbing, durable the "hydrostatic molecular technology" enables the engine to have a good quiet effect good mute effect, excellent anti-wear protection, sufficient power, durable and long service life, strong bearing capacity, smooth operation and easier climbing. complete sizes and models; 16 teeth/18 teeth/shift/integrated/split main material: gears are upgraded from 45# steel to 20cr, excellent anti-wear protection good quiet effect easier climbing long service life power foot transmission anti-wear protection provides an effective protection mechanism for engine performance.syi