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<blockquote data-quote="lavaLamp" data-source="post: 739835">Few months ago (March 2024) I bought a 1x10 Triban GRVL 120 from Decathlon. AFAIU, it&#039;s an entry-level gravel bicycle with matching components.Few weeks ago (after riding ~900 km) I checked the chain (according to a Decathlon mechanic a low-end KMC) with a chain checker and it indicated &gt;0.8 wear, which seemed strange to me as I read on the internet that chains usually survive ~2000km. Anyway, I bought a new Shimano deore chain. After checking with the same chain checker (after riding ~30km), it shows wear around 0.5% which was confirmed by Decathlon mechanics.I don&#039;t understand how could I have worn through the chain so quickly. I lubed the chain every ~100 km with Muc-Off Dry lube, which I now understand is not very good, but I still wouldn&#039;t expect such a wear after 900 km.What I&#039;m wondering is:<ol>
<li data-xf-list-type="ol">Is the chain wear mainly because of bad lube?</li>
<li data-xf-list-type="ol">Do I have to change my rear cassette? At a glance it doesn&#039;t show signs of excessive wear and chain doesn&#039;t skip.</li>
<li data-xf-list-type="ol">Or is this wear a systemic consequence of lower-level components?</li>
</ol><a href="https://i.sstatic.net/6ecGmNBM.jpg"><img src="https://i.sstatic.net/6ecGmNBM.jpg" alt="Derailleur view" class="fr-fic fr-dii fr-draggable " style="" /></a> <a href="https://i.sstatic.net/oT3gWo6A.jpg"><img src="https://i.sstatic.net/oT3gWo6A.jpg" alt="Cassette close-up" class="fr-fic fr-dii fr-draggable " style="" /></a> <a href="https://i.sstatic.net/nokN3vPN.jpg"><img src="https://i.sstatic.net/nokN3vPN.jpg" alt="Chain checker close-up" class="fr-fic fr-dii fr-draggable " style="" /></a></blockquote>

[QUOTE="lavaLamp, post: 739835"] Few months ago (March 2024) I bought a 1x10 Triban GRVL 120 from Decathlon. AFAIU, it's an entry-level gravel bicycle with matching components. Few weeks ago (after riding ~900 km) I checked the chain (according to a Decathlon mechanic a low-end KMC) with a chain checker and it indicated >0.8 wear, which seemed strange to me as I read on the internet that chains usually survive ~2000km. Anyway, I bought a new Shimano deore chain. After checking with the same chain checker (after riding ~30km), it shows wear around 0.5% which was confirmed by Decathlon mechanics. I don't understand how could I have worn through the chain so quickly. I lubed the chain every ~100 km with Muc-Off Dry lube, which I now understand is not very good, but I still wouldn't expect such a wear after 900 km. What I'm wondering is: [LIST=1] [*]Is the chain wear mainly because of bad lube? [*]Do I have to change my rear cassette? At a glance it doesn't show signs of excessive wear and chain doesn't skip. [*]Or is this wear a systemic consequence of lower-level components? [/LIST] [URL='https://i.sstatic.net/6ecGmNBM.jpg'][IMG alt="Derailleur view"]https://i.sstatic.net/6ecGmNBM.jpg[/IMG][/URL] [URL='https://i.sstatic.net/oT3gWo6A.jpg'][IMG alt="Cassette close-up"]https://i.sstatic.net/oT3gWo6A.jpg[/IMG][/URL] [URL='https://i.sstatic.net/nokN3vPN.jpg'][IMG alt="Chain checker close-up"]https://i.sstatic.net/nokN3vPN.jpg[/IMG][/URL] [/QUOTE]

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