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?