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@Saffronspokes
So I've been having issues with my chain skipping when under load in the big ring.
I replaced the chain and cassette in March and this sorted it out but the skipping returned last week. My chain (new in March) is completely worn well beyond the 1 measurement mark, I've probably done 2500 miles on it and it's been cleaned and lubed in line with recommended good practice.
I've just put a new chain on but surely there must be something that's causing such accelerated chain wear, I don't normally wear chains out that quickly.
Could it be my chainrings (note only skips in big ring under load)? Pics of said chainring teeth below....
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