I have a 700c hybrid with vertical dropouts converted to SS in December and I have 500+mi on this bike now as a SS. I want to complete the SS/FG conversion. I am using a RD as a tensioner. The chainring/cranks are the bike's stock Shimano 2203 52/42/30, I am using the middle 42T. It's 130 BCD 5-bolt.

Currently the rear wheel has an eccentric ENO hub (first generation - threaded for the fixed side - no splines) with a 16T freewheel. Before this I was using a standard road hub with a single splined 15T cassette cog and spacers.



Ideally all I'd need to buy is an unramped 5-bolt 130mm BCD 47T or so chainring and some single bolts so I could try fixed, remove the RD, and shorten the chain, but don't know if I need a new BB/crankset/etc. The chainline right now is not quite straight (with spacers on a road hub it was better). Is there a way to figure out if this is doable?

Also, according to the White Industries website, the chainline on the fixed and free sides of the hub are different (43 vs 47.5 respectively). How the heck do you keep the chainline straight when you flip the wheel?

Finally, I have the (probably silly) idea to put on a dual fixed cog for flat land riding with 2 teeth difference (most of my riding is reasonably hilly). How would this affect chainline if I tried to use this? Would it even be possible to do with the adjustment range of the eccentric hub (as opposed to proper horizontal dropouts)? Would it be easier to get a Miche cog holder system for the fixed cogs?



Thanks.