The defect rate of electric bicycles produced by Space cardan Electric Bicycle is less than 0.48%. The first reason is that our frame is made of 6061 aluminum alloy material, and has undergone fatigue and bumping tests with a load of 70KG and 30W times. The frame can be used for more than 15 years.

The second reason is that the product must undergo battery aging testing, and the third reason is that the motor durability testing. The fourth reason is that before shipment, the entire vehicle is tested and all are qualified before shipment.