I put these Nitron by Meteor NTR1 on the car at the beginning of this year as a replacement for the standard Nitron Units. After I specified the rear mounting position, they arrived with all the parts required to fit them. They were easy to fit and easy to set up (in fact no need to use the supplied C-spanners). They are light and they look good too! It is obvious that a fair amount of research has gone into the damping technology, as I set up the damping within a matter of minutes driving the car. I won the Lotus 7 Club Speed Championship using this suspension.