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39x16 & 50x18 are about the same ratio (which would be the better size to use ? Smaller ? )
Bigger is smoother.
I usually use this calculator to check chain length vs. chainstay length, but it seems to be offline at the moment. This one is a bit more useful as it shows a table of potentially magic gears for any given chainstay length.
I'm happy with spinny as my knees are ruined
50/18 isn't most people's idea of spinny, and it's much higher than 39/16. There's not much evidence that spinny is better for your knees than mashing, if anything the evidence seems to point the other way. Nonetheless, if you want to spin without buying any new sprockets, 39/16 is a decent everyday gear.
gbj_tester
Rodolfo
Yeah, the junk wheels are just a little worn aksium race that cost more than my btwin 😂
I had a quick look on Sheldon & 39x16 & 50x18 are about the same ratio (which would be the better size to use ? Smaller ? ), I'm happy with spinny as my knees are ruined.
I didn't find the calc with cs length though.
The seat angle is more the camera angle, it's 1 notch from horizontal, if anything with that saddle it needs more nose down as it ripped me a new arse on Sunday, I've the same prologo on my other bikes at same angle etc, this was just the one on it from last time, I've another 4 to trial on it.