Quote:

too much pre load on the cal tracs will cause that start backing them off 1/2 turn at a time!
Made a huge difference in mine when I had a 542 (RIP) added some extra pre load last time out with my 452 and it was way less stable top end.
Just something to try



Only got 1/2 turn preload on the bars , would this make a difference? , thinking too much preload would be similar as having to hard a shock absorber? , never driven it without preload so will be interesting to see what happens , fitted them & set them up as per caltracs instruction.