Originally Posted by
Slaninar
Method a)
That would be rougly one new chain every 3 k miles.
One new cassette every 9 k miles
Mostly used chainring every 30 k miles.
I find that I get far more miles than that out of my cassettes(20-25k miles) and chainrings(40-45k miles). My small chainring might last a lifetime. In this part of AZ it goes months without ever seeing use.