Originally Posted by
pastorbobnlnh
The Duopar will actually shift to a 38T sprocket and completely handle a 50-42-31 triple and a 16-38 six-speed freewheel
That's interesting. I've been playing with mine lately and found it didn't really like a 36 - seemed like the upper jockey wheel was a bit too close. It worked but was noisy and fiddly. When I switched to a 12-32 9sp, the shifting improved dramatically and all was quiet. It looks like your rear wheel may be sitting farther forward in the dropouts than mine so maybe I'll fool around with that. Any other ideas? I suppose there could be a difference in the hangers as well?