SRAM Rival Der. to Cassette Compatibility
I have a SRAM Rival 10 sp. derailleur and cassette. The cassette has a 28t cog on it(lots of hills in Seattle). I noticed on several sites that sell SRAM derailleurs that they only support up to a 27t cog. I had a problem recently that is in another thread where my derailleur got hung up in the wheel and cassette and bent my hanger. I thought, and still do, that it was caused by when my bike previously fell over.
My question is....why would they sell a 28t cog on a cassette(Rival) when the matching derailleur(Rival) doesn't support it? Why does the box not mention it? Is there really that much of an issue? Could it have caused my problem?