Shock Absorber Type 540 TS Suspension KitRide comfort for Harley Davidson Tri Glide, all model years From the factory, the rear spring rate on Tri Glide models is too soft. The result is harsh bottoming over bumps and a choppy ride that transmits straight into the riders back. Our Wilbers conversion solves this with spring struts tuned to the correct spring rate and matched rebound compression damping. To balance the chassis, we also address the fork: stock forks are overly stiff relative to