I can't even remember exactly when I last changed my brake pads.......1st set I had done by the bike dealer who fitted an aftermarket set was at 60,000 kms so maybe at 80 or 90,000 kms when I went back to OEM pads for my current set which were 75% worn at the last tyre change at around 154,000. The wear rate would be lots more if I lived in a city rather than a country town.