The Andra rims can be ordered in many different wheel sizes and with the drilling angle for the spoke holes optimized for the hub and application. All Andra rims are built to withstand and carry more load than regular rims and can ideally be used for not only regular e-bikes, but also transport bikes with or without motor support.
The higher profile also adds a surplus of stiffness to the design. The internal width for the Andra 321 is 21 millimetres for more stability to the wider tyres used these days. The higher profile also adds a surplus of stiffness to the design.