The bracket that is required to attach your Range Extender battery can connect to your bike with different connector ends. There are a few different types found on different Biktrix eBikes. Consult the table found here for a key and click on each type below to see images of each of them!
Juggernaut Ultra Duo 1
Juggernaut Ultra Duo 2 Step-Thru, Juggernaut Ultra Duo 3, Juggernaut Hub Duo, Juggernaut Ultra FS Pro 2/3
Juggernaut Classic Duo, Juggernaut Ultra Duo 2 Step-Over Solid Colour