I was wandering if any aftermarket companies have steering stems and/or dampners for the Raptor?

 

ALL the reviews say the Raptor has ZERO bump steer. Does the Raptor have bump steer?

 

Timmy boy designs makes a steering stem and PEP and Denton make stabilizers.
You can find Timmy BOy through Graydon's website the others your on your own.
Later
www.graydonproline.com
www.delphi.com/raptor660/start

 

Bump steer?? Stems and stabilizers have nothing to do with bump steer.

 

OK, tell me what stems and stabilizers do and how they have no effect on bump steer. I have a steering stabilizer on my DS650.

 

Scooby,

A stabilizer does just that, it keeps the steering from jerking when the wheels catch on ruts, stumps, rocks and etc... It just slows down the steering.

Bump steer is totally unrelated. It is where the suspension changes geometry from being compressed. For example, you caster and camber may change as your susupesion is compressed. When this happens, it is just like a car being out of alignment and your quad pulls one way or the other, even if your steering stem hasn't moved, and thus your handlebars are still pointing in the same direction.

The longer Raptor seems to have little or no bump steer.

 

It's not so much an issue of caster and camber, but TOE-IN. Bump steer is created by geometry changes caused by unequal length tie rods as compared the the length of the a-arms. If the two aren't about the same length, toe in changes as the a-arms move throughout their travel. The differences in camber change is minimal, because this disparity in tie rod/a-arm length has no effect on the positioning of the a-arms and the attachment points of the spindle via the ball joints.

 

It's not so much an issue of caster and camber, but TOE-IN. Bump steer is created by geometry changes caused by unequal length tie rods as compared the the length of the a-arms. If the two aren't about the same length, toe in changes as the a-arms move throughout their travel. The differences in camber change is minimal, because this disparity in tie rod/a-arm length has no effect on the positioning of the a-arms and the attachment points of the spindle via the ball joints.