Replaced the 3 hoses on my 11 today, part numbers are,19656-MT3-000, 19657-MT3-000, 19658-MT3-000, visually all looked great, when I removed 19658 from the fuel shut off valve it was developing a split internally, externally I would have decided there was nothing wrong with it.
Cost of the hoses from Honda Shop was $26.65,Thanks Pezzz, (he paid for them), time taken was maybe 1.5 hrs, removing everything to remove the air box and then replacement was the time.
I would recommend all 1100 owners do this, a small price to pay for some peace of mind.