Actually it's only 40 n-M (30 ft-lbs) which seemed to me awfully loose! Something of that physical size makes me want to put at least 40 ft-lbs. But I didn't, I torqued it to spec.Originally Posted by dianne_1234
I don't know what the spec for the BB is, but I would sure hope it's 45-50 ft-lbs! Maybe I'm just too used to working on motorcycles, but I want my chassis and drivetrain parts solid.
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12-04-2009, 08:40 PM #1
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12-05-2009, 12:21 PM #2
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Thanks for the number Oakleaf. Originally Posted by OakLeaf
Actually it's only 40 n-M (30 ft-lbs) which seemed to me awfully loose! Something of that physical size makes me want to put at least 40 ft-lbs. But I didn't, I torqued it to spec.
I don't know what the spec for the BB is, but I would sure hope it's 45-50 ft-lbs! Maybe I'm just too used to working on motorcycles, but I want my chassis and drivetrain parts solid.
Posting them made me look up a typical BB cup. Shimano asks for 35 ~ 50 Nm. Cite here:
http://techdocs.shimano.com/media/te...9830667739.pdf
So it's nice to know my memory isn't that bad!
Bottom line the lock ring should be *tight*.
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