The cheeks of the cross frame are the side pieces as shown in this recent parts book image where the (1) is pointing.

[Linked Image]

It can be seen that caster is increased by attaching frame to chassis with the former tilted further back at its top.


Richard

2018 Roadster 3.7
1966 Land Rover S2a 88
2024 Royal Enfield Guerrilla 450
1945 Guzzi Airone