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Help a retard understand chain wrap.
Touring bike has pic rel. I want to get some low gear range. Spec sheet says 34t max cog, and 34t chain wrap capacity. Parts I'm thinking of installing are a 14-34 freewheel, and 46-36-24 chainrings, so chain wrap is 42t.
But isn't that only a problem if I crosschain? Or is the capacity calculated anticipating you *won't* crosschain, and reflects normal intended use?
