Originally Posted by
HillRider
+1 Shimano is very conservative in their capacity ratings and most often their rear derailleurs will handle a cassette somewhat larger than the published limit. Try the 30T with your 5600 before buying a replacement. You will probably be pleasantly surprised.
All good to know! Thank you guys for the info and encouragement. I was worried I’d need to upgrade brifters as well, so good to hear!
and no issues w trying the 5600 rdr w a cs-6700 cassette?