Cycling maintenance tips, gear tracking guides, and updates from the WatchMy.bike team.
A cassette can outlast 2–4 chains — but only if you catch the chain at 0.5%. Past that, you're replacing both. Here's the wear math, the new-chain skip test that tells you definitively whether the cassette is dead, and the signs your chainrings have entered the conversation.
Your chain is silently costing you watts and money. Learn the science behind chain wear, how to replace a chain yourself, when the cassette needs to go too, and how lube choice affects performance — with practical intervals and a system to never miss a service window.
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