So some where along the line i seem to forgot how to check if a cassette is still worth keeping. (mostly down to bike counts keep going up in the last few years, so mileage/wear is spreaded very thin across the fleet). some of you may know that i recently bought a second hand bike, the cassette came with the bike is an Ultegra 6800 11-28. it clearly have that chain "imprint" on the cogs, but it does not jump/change gear with mind of its own. the teeth look mostly intact, i guess i can keep it for now.... So question to you guys, how do you decide if your cassette has reached its end of its service life? Cheers.