Your bike's maintenance log
You don't know when your chain will give up. ChainLog does.
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The math you're not doing
You replace on time
Shimano 105 chain
25 €
You miss the window
Shimano 105 chain + cassette
80 €
Saved per replacement
+55 €
2 to 3 chains a year, plus brake pads, tires, cables.
Over a season, it adds up to hundreds of euros.
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