Originally Posted by cmh
I have a DA chain on my bike with about 2700 miles on it. It measures to be exactly 12" for 12 links - no stretch at all. Should I replace it anyway? I don't ride it in bad weather much, but it seems like a lot of miles.
2 opinions here (yes opinions):
1. If it measures 12" exactly, shifting performance is "perfect", and you regularly maintain it then keep on riding....
2. If you cringe at the thought of replacing a DA cassette
and think your measurement could possibly be 1/16-1/8" off depending on how carefully you lined up the scale to the exact pointon each pin....then spend the $20-$30 and replace it.
Better yet:
1. If you change the oil in your car at 7500 miles or more like your bottle of synthetic oil says to regardless of what the owner's manual says...then keep riding your chain
2. If you change your oil every 2000 miles, even when you use synthetic, just because you feel like it help the engine perform better and last longer...then get a new chain....