So I've been riding fixed gear for a year and a bit now, still enjoying my bike quite a bit... Gearing is 44x17, and I've got just a cheap magnetic trainer that has adjustable resistance. As far as I can tell, the trainers resistance is 100% off, then has 5 levels of resistance. I do my warmup at resistance 1, for about 10 minutes, and the same for cool down. In between I'll do runs at resistance 2 for 1-2 minutes at a time, then back to 1 for cool down.
So far the longest I could make it was about 1 hour at a time. I've been able to come back to the bike later in the day, but in one sitting an hour is about as far as I can make it. I guess my question is, how long should I be training on this thing, and if you have any tips, I'm all ears.