Best $12 I ever spent was on a chain checker tool

I kept replacing my chain every 3 months cuz I thought it was stretching, but turns out it was fine. That little Park Tool CC-3.2 saved me like $40 on my last replacement, anyone else ditch the guesswork for one of these?

2 comments

2 Comments

laura_ross1mo ago

I gotta push back on the "best $12 I ever spent" part here. I bought one of those chain checkers a few years ago and it actually messed me up because it told me my chain was fine when it was REALLY already worn out. I ended up having to replace my cassette and chainring too because I waited too long based on that tool. Theyre good for a rough idea but Ive seen people say those Park Tool ones can be hit or miss with accuracy. I think measuring with a ruler or just replacing on a schedule is way more reliable honestly.

phoenixgonzalez1mo ago

Got the same Park Tool checker and had the opposite experience. I started using it after I ruined a cassette by riding a chain way past its limit just guessing by feel. The tool told me my chain was shot at 0.75 so I swapped it in time and saved the rest of the drivetrain. I think the trick is you gotta check more often than you think and not just trust it once. My buddy swore by the ruler method but he ended up replacing chains way too early and wasting money. I just check mine every couple hundred miles now and its been dead accurate for three years so far.