I have a fixed gear bike, Rocky Mountain Boroughs Fixie (see [picture][1]).
The chain is very tight compared to any free wheel bike. So anytime the tire gets punctured (unfortunately very often) and I want to dismount the wheel, I have to remove the chain by using a chain tool.
The question is: does anyone know of some trick to replace the tube without doing all of this?


  [1]: http://www.bikes.com/DATA/BIKE/853_large.jpg "picture"