Slicast® Caster Adjustment

Suzuki LTR450 Slicast Balljoint view


One of the things we are best known for, is our Patented SLICAST® (US Patent # US 7,568,711) Caster Adjustment on our ATV a-arms. This adjustment was ground breaking, because it allows you to adjust you caster, separately from your camber. All of our current ATV a-arms are made with this feature included. Here are the top questions we receive about the Slicast® feature:

What does it mean to adjust caster on your ATV?

The caster adjustment is another adjustment for the location of the front wheels. The caster is the tilt of the wheel knuckle, or the location of the top ball joint over the lower ball joint. If the top ball joint is back towards the rear slightly further than the bottom ball joint, the caster is increased or positive. It is difficult to get an exact measurement for your caster if you do not have the Houser Slicast® A-Arms.

How do I change the settings on the Slicast® adjustment? 

You can make adjustments to your caster by adjusting the Slicast® Main Cam piece located by the ball joints on your upper a-arms. Loosen the jam nut, pop out the Slicast® Main Cam piece and turn it to your desired setting. Re-tighten the jam nut and you’re ready for riding.

What setting is best for the riding I do?

We can’t recommend what setting is best for you, it is about what you are comfortable riding. What we do recommend is to take your ATV out for a spin and try multiple settings to see what you like the best. Roll the ball joint all the way forward and ride it, roll it all the way back and ride it, and then put it on “zero” and ride it as well. That way you have a good idea for how it feels at all extremes, and you can fine tune from there.

Generally, motocross riders will turn the Slicast® Cam such that the upper ball joint is moved towards the rear, increasing caster and straight line stability. Cross country and trail riders will move their upper ball joints towards the front, decreasing caster and improving the way the ATV corners.

Note: The caster mostly affects your ATV’s ability to turn corners. If your ATV is set-up for going fast and straight, then adjusting caster for a flat, straight track would be the most ideal situation. When you test drive your ATV after making the caster adjustment, make sure you test it on a track most appropriate to your preferred conditions. Always use extreme caution after making adjustments until you are used to how the ATV turns. 

What are the degree increments between settings on the Slicast® Cam?

When the Slicast® Cam is rotated, the caster is adjusted in increments of .4°. The stock setting for the caster is 0°. Our Slicast® Cam allows you to adjust it to the rear up to -2.4°, or to the front up to 2.4°.


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