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Re:A bike parts company ditched Amazon to support indie shop... by snovv_crash on Tuesday August 24, 2021 @11:25AM (#28290095)
I believe the new 11s/12s with their higher chain angles tend to wear faster. They actually recommend changing it with the chain.
Re:A bike parts company ditched Amazon to support indie shop... by aix1 on Tuesday August 24, 2021 @11:46AM (#28290394)
I think we're talking about different things.

I am talking about the groupset (the shifters, brake levers, brake calipers, derailleurs, crankset, bottom bracket, chain and cassette).

There are indeed some wear items (chain; cassette, especially if the chain isn't replaced when worn; brake pads; brake rotors) but, apart from those, a looked-after quality groupset can last decades.