Originally Posted by
Spaghetti Legs
Andy, I’ve used 34-28 on a Super Record RD, but agree with others that pushing bigger than a 28 wouldn’t make for a happy derailleur. If you want to cheat a little with a modern, but looks vintage compact double, and you’re feeling spendy, Boulder Bike has IRD 46-30 cranks for a pretty good price. It’s a really nice crank (put one on my/your Heron re-do).
When you say you used a 34-28, what were the other extremes? 50-34 + 14-28?
I don't know how I stumbled into this insinuation that I'm trying to use something bigger than a 28. The big cog on the freewheel I'm trying to use is only 24. The 32 I mentioned is a front chainring. To be honest, I could probably just block off the big chainring and use this as a 42-32 double. I just want to make the full triple work.