Well, if the seat is already lower than stock, shocks are your option. If you get 1" lower shocks, they will work just fine. Don't forget HD makes a low profile shock for baggers that would lower it about 3/4 inch and it keeps the air. Progressive has so many shocks, you can find something there that would work. Look at the 412's or if your wallet is fat the 440's. I'm not sure the stock length on a 01 RK, but if you go 1" lower than stock you should be OK. Personally, I'd probably look at the Progressive shocks before I got the HD low profiles, but I'm not going to tell you what to buy. You know what you need and want better than I do.