Quote:
Originally Posted by Gnarly Old Dog
Not sure if the instructions are at their clearest regarding this point.
The 2mm washer that is suggested to fit under the ball stud on the spindle (at the wheel end) is only required when using the flat shim under the kick plate.
When using the tapered shim as the instructions suggest, remove the 2mm washer and you'll find that the bump steer has gone.
The tapered wedge effectively raises the spindle as a by product of reducing the kick up.
You'll probably find that you will need different thicknesses of washers if you start to play with the option caster blocks also.
HTH
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Thanks Gnarly, I'm not sure everyone's picked up on this. It looks like a mistake in the manual (assuming the aim is 0 bump steer). If you build as per the manual with the tapered kick shim (20 degrees), you should leave out the 2mm spacer on the spindle (which the manual shows in), this will give you 0 bump steer.
If you want to use the flat kick shim (25 degrees), put the 2mm spacer on the spindle.
If you build as per the manual with the tapered kick shim and the 2mm spacer you will be left with bump steer as most people have found.
The actual size of spacer required will also be affected by choice of caster.