Sweet I didn't think the tire setup would be an issue, and it rides pretty well anyway. I assume speed-wise the difference between 28 and even 23 are not noticeable to a non-racer.

FWIW, I like to spin rapidly on hills. I'm not worried about looking like a wuss by some random cycler who's staring at my gears, I'd rather just make it up the hills.

- I'm pretty sure the cranks are 130mm. How do I verify, just by measuring?
- Any issues mixing a Biopace big ring with a round regular ring? Or should I just swap both at once.
- I can't tell if it's a freewheel or cassette.
- What's the max jump on the front -- 14 teeth, correct? I.e. if I tried to go for a 50/32 compact, I'd need to swap out to a 110 crank.