On the road I don't have much trouble with forgetting I am on a fixie. Trying to coast.. can be quite a painful experience. Come to a set of railroad tracks and stand up to coast over them.. and the bike will try and through you over the handlebars. Well on tonight's ride.. not far into it. I come to a rooty section.. big roots.. sticking up 8" or so.. I "panicked" and tried to stop pedaling. Fortunately it was a little sandy and the rear wheel just locked up.. slowing me down... and I made it over the roots. My other lapses were just split second.. trying to coast.. while the bike keeps pushing your feet.
I had 3 nasty hills I was worried about, although that I think was more just a single speed issue vs specifically a fixie issue. It was work, but I made them all.
I had a downhill that had quite a few big round cobbles.. 4" to 10":12" ers I hit them a little to fast.. It was hard to get up and absorb them all [no suspension] while keep pedalling.. the bike tries to through you over the bars in that situation also. This was part of a little loop that we got to do twice, I went a little slower and had no problems.
At times while waiting for the slower riders to catch up.. I would play off in the woods.. with no trail. This thing is a beast doing that. The Pugs is kind of bulldozerish to start with, in fixie mode, it seems even more so. It just wants to keep plowing. Also with no deraileurs or lower chain.. It was much safer plowing through branches and brush.
I did later get to try a downhill run down a sandy gravel pit. It was not as steep as stuff I have ridden in the past.. but it was quite loose. I slid way behind the seat.. just inches above the tire.. and was able to still keep pedaling fairly smoothly and comfortably.
