The tilting kit is make with aluminium and steel 
Item wheels exclude
Ask : what size of bicycle can use this tilting kit ?
An's : it can fit for most bicycle and E-bike  , we suggest need check the wheel diameter  before you buy, usually you need prepare pair of wheels it should be 4 " smaller than the rear wheel .
For example , if you bike wheels is 26" then the front wheels should be use 22" , if the bike wheels is 20" then the pair front wheels are 16" need .
it is for balance the whole bike need after install the tilting kit on your bike .

Ask : what the bike fork can be fit for use ?
An's : Please see the picture as we show different fork size can be fit use for , due to so many fork size in the market , so if your bike fork is out of the list on picture , just tell us 
what fork size need ( see picture how to measure different position on the fork )
3 position check :
1) fork to fork distance ( upper position )
2)  fork to fork distance on end of bottom ( position for fit the bolt )
3) fork tube diameter

Ask : possible supply the wheels
An's : We can , you can select the different item it is wheels included , just cost increased