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1,198 Posts
Drone 5200 said:
WOW! I'm impressed. You are a knowledgeable crowd. Thanks for sharing the wisdom. And so fast, too.

One follow-up: Is that 27T max for real? Anyone with experience using a 29T on the RD-7800?
Exceeding the 27t max gear limit usually requires screwing the b adjustment screw all the way to pull the derailleur beck behind the cogs so that it doesn't rub. I've heard of guys even replacing the stock screw with a longer one.
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