Description:
1. Double layer high-strength aluminum alloy rims, with a double layer design to protect the inner tube of the bicycle and extend its service life.
2. Suitable spokes for the rim: 12G, number of spoke holes: 36
3. Air nozzle hole: American style
4. Applicable tires: 20 × 4.0, suitable for most electric bicycles, beach bikes, and electric mountain bikes