My 98 Tourer With 193K miles has Progressives. Not sure of the model #. My Dad was the first owner, I am the last owner. He put those shocks on sometime before I inherited his Valk in 09. I recently noticed the Valk feels like It’s riding on marshmallows. I did notice some micro engraving near the inside bottom of the springs. How can I rule out needing new shocks or just rebuilding them. If that’s a possibility. Any help/advice is appreciated.
The problem with the 440s is that they blow out... it is obvious. When mine
blew out on a ride I was thinking "dang, it's like my shocks are blown!" I looked
down and they were blown... oil everywhere.
There's a kind of Progressive air shock, I think they have accordion booties
on them... 430s I think, the people who have them like them I think, but they wear out
and leak pressure.
The other ones I know about are like 412s or 413s, I forget... they're like
marshmallows out of the box

...
You can search this forum for some recent posts that show there are still
some alternatives... including Progressive 444s, which superseded the
440s.
A Valkyrie with some good shocks and forks is a good motorcycle

...
-Mike