Rear cup springs on standard 197?

I have a 2006 standard 197, my rear spring snapped the other day so I bought another to replace it.

The new spring arrived today, it's got red and blue markings on it which after searching I've found out is a cup spring. Understand they are stiffer.

Will it fit?

Also will it be the same ride height at the back?
 
It does appear you have a cup spring.. it will fit however I would only replace like for like. And the ride height would be affected also
 
Thanks for getting back to me, I fitted the spring yesterday - seems to be fine but will look into getting cup dampers and and another spring to match up the ride height at the rear.