I’m mentally toying with rebuilding my lovely Roadeo with silver and
friction parts  instead of the industrial-looking (but seamlessly working)
Ultegra 8000 11-sp group.

This group includes a 50/34 double. I think of switching it to a 50 +
something smaller than 34. Do any of you have a 20-tooth gap between big
and small rings? What front derailleur? How does it work?

I’d center the big ring so that the drivetrain is a 1X + occasional use
granny. I’d use the 50 with all 11 cogs, cruising gears would be the middle
5 cogs in the big ring, and I’d use the granny only for very steep hills.

Would this work? Things to be wary of?

Thanks.

BIG RING CENTERED
27.3" wheel
  50 30
14 98
15 91
16 85 51
17 80 48
18 76 46
19 72 43
20 68 41
21 65 39
23 59 36
27 51 30
32 43 26

-- 

Patrick Moore
Alburquerque, Nuevo Mexico, Etats Unis d'Amerique, Orbis Terrarum
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