Hey North Star, looked these Ricor Intiminators up and see they make a 49 MM version for the 2014 and newer Rushmore bikes for only about $200. I've asked them if they'd work well with my stock shocks .......or if I needed to upgrade the front shocks would they work with the H-D Premium Ride Single Cartridge Fork Kit?
It appears you've installed the Intiminators on your stock shocks ..........how well did that work out?
I don't think they are designed for use with cartridges- they are used instead of cartridges, to be used with fork springs.
At the time, Ricor said my OEM 2009 springs would work fine with the Ricors. I've had them in for a few years now, and are a big difference from stock, as they firm up the front and reduce brake dive. I still bottom out sometimes though.
I'm want to install the CCE Tour Trac Tree, so my front end has to come apart, plus my fork oil is old, so I decided to take out the Ricors and do the Axeo's in the front, which I think will be an upgrade.
What did Ricor tell you about your questions?