Smaller ET value: the difference

[Burl Vibert]

Douglas Frank wrote:
> 
> Alexander van Gerbig wrote:
> >
> > I've discovered that the ET45 with 185 is smooth and has
> > no bumpsteer or  tramlining.  Though the ET35 16" with 205
> > has tons of bumpsteer and tramlining is something that can't
> > be avoided.
> 
> I'm losing it!  Bump steer is due to toe changes in bump/droop,
> yes?  So why would changing the wheels affect it?  (Changing
> tires, OK, a tire with quick turn-in will show it where an
> inflated O-ring would not... but changing the wheels?)
> 


I don't believe it's actually bump-steer from the other wheels, 
it's probably changing the scrub radius which feels kinda the
same in that the car front end tends to pull from side to side
when going over bumps of uneven pavement.

Burl Vibert
1987 5kcstq
Kingston, Ontario