Quote:
Originally Posted by BBPanel
Hmm, that seems a little contradictory - move them outboard and under the frame rail but narrower is better?
I could probably locate the lower bar under the frame rail but what about the upper - it couldn't be in the same vertical plane - is that a problem?
As for the triangulated 4-link, i thought there were some guidelines on the ratio of the lengths of the upper and lower bars (I don't recall what they are) and very narrow frames don't work out well. Is that true?
All in all it sounds like if I replaced the ladder bars w/4-link in the same location they are now its not a problem. -Bob
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Sorry if I my post wasn't clear. I didn't say narrower is better. It's not. Narrower simply offers more articulation (roll within the chassis) & wider offers more control. The lower bars affect roll steer the most. The width, angle & length of the lower bars all affect roll steer. 28" wide is fine & will work well, providing all the other suspension components & geometry are correct.
Having not seen your frame layout, I couldn't recommend the best layout. If you post some photos, we may be able to offer ideas.
Having upper bars on different vertical plane is not a problem. Mounting them inside your frame rails (therefore narrower) would allow the rear suspension more articulation (roll within the chassis).
There are guidelines on the ratio of the lengths of the upper and lower bars on triangulated & parallel 4-links. But if you ask 6 different designers/engineers, you'll get 6 different opinions based on their experience, or lack of. There is no absolute ratio.