2015 high quality 250w e bike retrofit

YANGZHOU SAILI MOTOR CO.,LTD is a specialist of e-mobility components and complete systems and sells its products internationally.Our area of expertise is the production of systems for e-bikes and ebike kits. We are successful in Europe, South America and the United States.

 We start our business with ebike systems in 2003, and we assemble the best and cheap ebikes to support customers all over the world.

 We would like to invite the customers to visit us and talk about dreams together!

Q:What`s the different from geared motor and gearless motor ?

A:Geared motor inside is gears ,life time is about 3years ,gearless motor life time is 5years. geared motor is better at climbing.torque is powerful.efficienty is above 82%,better than gearless motor .

Q:  What is the difference between front wheel and rear wheel?

A: Front wheel open size is 100mm, is easier to install ,10mins is ok . it is suitable for flat road riding. Rear wheel open size is 135mm, is better for hilly road and hill climbing, and motor can assemble speed gears.

Q:How to ship one sample ?

A:One sample is better shipping by air ,battery shipping by TNT only.sea shipping cost is low ,even free,but nearly all destination port charge is high ,similar as air shipping,but air shipping save a lot of time .