because I felt like it. was not bad at all. just felt like it. have a stash of useable old ones and a stash of new ones.
KMC not a typo. sub 100 miles. if it had the decency to let me finish that ride, it would have been over 100 miles. brand new chain, brand new cassette, brand new chain rings too. and oddly there was even one comment on here when I mentioned it saying how badly I’d looked after the chain. 153km. 3 rides (well 2.5) of the equivalent of towpath and road. how much maintenance am I supposed to have done? complete strip down degrease and relube (twice) ?
sometimes theose low milage change of chains is immediately before a week in the Alps or somewhere. call it precautionary. easier to pop a new chain on at home than on the trail.