something obviously a miss there dirtyrider – no logic in it failing on the flat at all, something else must be a miss some where?!
as for wear, im getting through x1 chains at an alarming rate, ive recently changed front rings to direct mount raceface, and even with a new xx1 cassette, my park tools cc2 chain checker suggest my chain is worn after 350 miles (peak district and a fair whack of grit/climbing feet etc)
so either my chain checker is out, or something isn’t right with the RF narrow wides wearing out my chains? only other thing is im now on xtr rear mech (which wont make a difference im sure)
my xx1 chainring before did about 1500 miles last year before being replaced, and changed the chain probably every 3-4 months earliest
im gonna try a dura ace/xtr 11 speed chain next and a oval chainring from absolute black see if that makes a difference, have also found the RF narrow wide very very noisy compared to the xx1 chainring it replaced even in the bone dry!