NCX Seatpost Spring

A very big positive difference with this spring.

Spring is really hard,I don't see any difference with middle model, looks like same spring different color

OVERALL VERY SATISFIED WITH PRODUCT. I LIKE TO ADD THAT ADDITIONAL INSTRUCTIONS SHOULD BE INCLUDED WHEN UPGRADING FROM THE STOCK SPRING. IE: REMOVE/UN-THREAD BLACK KNUCKLE FROM STOCK SPRING AND THREAD ON TO NEW SPRING., ONCE YOU HAVE REMOVED THE BLUE OR RED MIDDLE BIT. BE SURE ADD SOME LIGHT GREASE TO SPRING

We had to replace the default spring for men, with a red soft spring for my wife. After this change, its fantastic.

It works as advertised. Very easy to install. Adjusting is a little more time consuming. I started with the spring very loose, after several short rides I tightened the spring one revolution and will continue to do that til I get it the correct tension for me.