Ok, so I have finally decided to plunge into the single speed thing and I am converting an early 90's Trek 400 road frame into a single speed roadie. I considered going fixed but the hills in my area can get pretty crazy and I want to be able to coast when I need to. So, from what I have read, I decided to go with a gearing that will keep me working, not too easy, and will still be able to keep up with some geared friends when I get my leg rpm's up. My question is, how do you all find the way to spin easy enough for your recovery days? Do you keep a lowered gear wheel set up for those times? Do you just decrease your leg rpm using the same bigger gear to lower your heart rate? Thanks for the help.