Cframe And KeyFrame Relation

(Last time my topic got ignored, repost)
Hey, recently I have been having trouble understanding how to animate this bike chassis i use (NCMT) I need help making a leg up animation for the bike whenever on turns, currently the legs look really wierd on turns

image (issue)

What its supposed to look like:

Here is the code for the animations, i really need help making this and i have no knowledge with cframe whatsoever. (add me on discord or dm me on devforum if you are able to help me out)
kxsprite#1502

Code:

pastebin code