Mike (soon to be me...) lubes the chains on all bikes on a regular basis - come back from a long ride, while still warm - lube it.
Does his on his XJR about once a week. Guys at the Yamaha dealership said that his chain and sprockets are in excellent condition and won't need replacing - even after 30000 kms.
Dont talk to me about chains & sprockets....i am up for replacement sprockets & a chain, right freakin now, and, after only 25000km's on the lot that is on the bike now...
And yes, i practise regular maintenance, etc...
My only guess is that the lightweight 520 chain & rear sprocket on my bike, which is more designed for track use, isnt quite as durable as a 530 set up...
oh well....