I finally figured out I was over-torquing my crank bolts for years

After snapping my third Park Tool hex key on a crank arm last month, I checked the spec sheet a shop guy gave me and realized I was cranking down to 50 Nm instead of 35 Nm. What tipped you off that you were doing a common job wrong?

2 comments

2 Comments

sanchez.mia5h ago

Torque wrenches are a scam in their own way but people don't realize you actually need to back off the click a second time. Most click types store a bit of extra tension if you just stop at the first click, so you're adding a few Nm without knowing it. Double checking with a beam style for final tightening would save a lot of busted tools and stripped threads.

derek9391h agoMost Upvoted

Hmm, I've never had that issue with my click type (been using it for years) and it's always been dead on.