DYU C6 26 Inch City Electric Bike  

Your video is amazing! The C6 looks very practical and stylish, and I can't wait to get on it! Thank you for your detailed introduction!😋

I bought a C6 a few weeks ago. When you put the front wheel on the bike and put the axle rod through the centre of the weel, there are two springs on the rod. One goes one one side of the hub and the other on the otherside with the lock nut. Looking on your video you have two of the springs on one side.