I mean utterly wore it out beyond all serviceability (is that a word?) ? After a spirited post-work ride with one of my franken-commuters I was marveling at how well the sora, yes SORA shifters performed. Im pretty abusive to my drive train on purpose sometimes, just seeing how well Ive tuned it up and it didn't miss a beat today. Ive got better, or I guess just expensive STI set ups on other bikes but barring any gripes with their ergonomics, those old 8 speed shifters keep on trucking, thumb shifter and all. I guarantee they have seen 20k + miles and with a little wd40 are still going strong. so have you ever really worn out an STI? How long did it take? Epic wipe outs do not count......


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