I put the twin adjustable shocks on today. All I can say . They should come on the trike from the factory. Only put about 25 miles on it today. But I could till the difference going down the driveway.

 

Since i am all about stability, which of the two would work best for me.

 

The 13" TA and the 13" PA are a Huge improvement in ride quality and stability over stock. There is so little difference between the two, you cannot tell when riding.

The 14" TSS is a step up from either of the 13", both in ride quality and stability.

If the 13" shocks are 4 steps up, the 14" is one more step up from them.

excerpt from report- "on the Trikes we paid close attention to body roll, testing for stability in curves. For us it is important to be able to go as fast thru a curve as you want without having wallow or body roll being a limiting factor. What this translates to, in daily riding, is better control/safer operation in the curves, even at normal speeds."