CHAIN CHECKER
ok, if you are so smart what IS the proper name for that chain stretch measuring device? ( there, is that better? ) ;-)

What I learned about it that I thought was interesting is that there are two measeuremnts on it, the .75 and the 1.0. So depending on which side of the CHAIN CHECKER you use to measure, you'll either tome ok, a a litle bit stretched or a lot. IIRC, the .75 side is for aluminum chains.
Anyway, no one has really discussed operator error as a cause for chain suck. As much as I HATE to admit it, I'm convinced that maybe 50% of my chain problems were/are due to shifting under load...Thowing the chain down a ring while madly pedaling up a grade, instead of just laying off for a second or two for smooth shifting...
Irulan
2015 Liv Intrigue 2
Pro Mongoose Titanium Singlespeed
2012 Trek Madone 4.6 Compact SRAM