I have an 80's Peugeot steel-framed racer that I want to convert to singlespeed/fixed. It has a standard square-taper BB with a double chainring chainset. I can see the chainrings are removable from the spider and was thinking I could just remove them and replace with a singlespeed ring to save having to buy a whole new crankset.
Will this work or will I have problems with chainline? I have yet to buy a new rear wheel with singlespeed hub so it's quite hard to check if chainline will work. I presume it is possible to bolt the chainring to either side of the spider giving me a choice of two positions. Beyond this I'm not sure how I would adjust chainline if it's out.
Any general help/tips regarding conversion appreciated. The bike has horizontal dropouts (not a track rear fork) so tensioning shouldn't be an issue.
Here's a (not very good) picture: