Hey guys, I'm thinking of converting my Nishiki Olympic Tri-a to single speed. Im using 190mm crank arms. What are some things such as chainline and what not will I need to consider? My local bikehub has everything I need to make the conversion. Worst case, I can always switch back. I don't have any significant hills where I live and I don't ride to aggressively anymore due to my knees, so I think this would be a good idea for my needs.

My main question is, how do you guys fair on long or steeper climbs? Is it manageable? I'm okay with simply coasting down the hills. What sort of gears should I consider? Maybe 44x18?

And what's better, fixie or a coaster hub? Fixie takes some getting used to, but its nice to be able to control the speed of the rear wheel through the pedals. I like the direct drivetrain feel of single speed and I think I'm set on converting.