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Tried the $15 chain checker, still trust my ruler more
Honestly, I spent last weekend building up a used road bike and compared my Park Tool CC-3.2 against a simple 12-inch steel ruler to measure chain wear. The gauge said the chain was fine, but the ruler showed 1/16 inch of stretch over 12 links, which is past the replacement point. Ngl, that ruler trick from the old shop manual in Portland saved me from swapping a cassette that would've skipped on the next climb. Anyone else rely on the ruler method over the click-style tools for worn chains?
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andrewh431mo ago
Did you ever read that old Jobst Brandt post about chain wear and how the roller slop throws off the gauge reading? He pointed out that a worn chain has two things going on, pin wear and roller wear, and the click tools mostly measure the rollers while the ruler catches the actual pitch change. That stuck with me and it is why I stopped trusting my CC-2 on anything that matters.
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