How to find the wheel size?

https://www.youtube.com/watch?v=_DSmoH8lOSw

How do I choose the motor?

For Brompton and Dahon bikes choose the motor for Brompton bikes from dropdown menu. For any other bikes please choose the first option from drop down menu

Which battery to choose?

360 Wh Battery is the default battery selection, if you want to have the battery that you can carry on planes then select the 187.2Wh battery. The range for 360Wh battery is approx 80-100 km and for 187.2 Wh the range is 25-30Km. These ranges depend on the driving style and terrain.

How do I know which bag and mount type to choose?

If you are a solo rider without a carrier than the seat post mount and bag would suit better. If you have carrier and no space to fit the seat post mount then either the handle bar mount or the pannier bag would fit. You can also buy the kit without a bag if you already have a bag that you carry with you.

Which adapter to choose?

Default adapter is with USB that you can use to charge phone and other devices. If you also want to power up the dynamo lamp then choose the second option from dropdown menu.