Originally Posted by
time bandit
you can use a chain tensioner for single speed. I believe there are some for fixed gear too, on a roller but have no clue how well they work.
real fixed gear will require more trial and error and perhaps an eccentric bottom bracket or hub.
good luck!
do not do this chain tensioner deal you will more than likely be seriously injured or die
use a quality half link to make up the chain length and you should be fine or you could use a half link chain however half link chains have a habit of failing
plus always run good brakes they will save your ass more often than you think