I woke up this morning thinking about gear ratios -- crunching numbers on 
BikeCalc and referencing the previous single-speeds I've enjoyed throughout 
the years. Things of note about the 'uno: 

   - An in-the-box COMPLETE comes with a 38t big ring and a 26t small ring 
   and a 16t cog on a flip-flop hub

The stock gear ratio on a 43mm tire equates to 62 gear inches, since mine 
will have 650b wheels. That's going to be too small, since I'm used to 69 
gear inches on my Kuwahara <https://i.imgur.com/mW9JzHQ.jpeg> and I pedaled 
73 gear inches for many years on my IRO <https://i.imgur.com/pXxqPUM.jpg> (it's 
not very hilly here). I'm also not into the chainguard aesthetic and the 
stock rings are not the best-looking on their own. I want my drivetrain to 
look clean, that's something I appreciate about a singlespeed bicycle. 

Here's where I'm at currently. I'm in possession of a 18t eno fw with wear 
(from my iro) and stock is 16t. If the math is correct and I'm seeking a 
ratio in the 69-73 zone:

with stock freewheel (16t)
42t = 69
43t = 71
44t = 72 

with my freewheel (18t)
47t = 69
48t = 70
49t = 72

Searching eBay, there aren't a lot of options for good looking 110bcd 
rings. I currently have my eye on a 42t salsa and a 48t sugino ring. I 
don't know much about em, but the willow chainrings look *really* sweet. 
What's the story on those? I'd love one for my roaduno, in the off-chance 
someone on the list has a 110bcd willow chainring in 42/43t or 47/48t in 
their parts bin. 

As I'm writing this, I'm realizing the stock chain will likely be too short 
once I get a bigger ring :\ 

-tio "one is all you need" ryan 

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