|torque of 11 Lb.ft.||Noam|
May 13, 2002 1:41 AM
|Hi there all Campy enthusiasts.
I just had my Campy Record hubs maintained for the first time. Simple, easy no hustle operation. No expensive special tools required. A couple of Allen keys and a spanner all what you need. Great design. I also inspected for possible cracks on freewheel side flange. None detected.
The only issue is the manufacturer recommended tightening torque required for the securing the freewheel body tightening nut (the one with the reversed thread). Could anybody tell me how crucial is the recommended torque of 11 Lb.ft.
Keep on spinning
May 13, 2002 7:05 AM
|Manufacturers wouldn't tell you torque specs if they didn't think they were important.
If it says 11 lb.ft., torque it to 11 lb.ft.
Everything on a bike has a proper torque, and everything should be tightened to that torque.
May 13, 2002 8:07 AM
|Sometimes you have to get a different torque wrench if you're going outside it's range. If you multiply by 12 then you get 132 lb.-in. If you have any sense of feel then it's pretty easy to do it by hand. However, if you don't have a bunch of experience it's easy to over do it. I'm willing to bet that 95% of the wrenches in a shop do it by feel.|
May 13, 2002 6:46 PM
|Is it only to protect the nut thread from stripping off?.
|I don't know about that particular fastener.||Spoke Wrench|
May 14, 2002 5:58 AM
|Some, like crank bolts, loosen up and ruin expensive parts if they aren't tight enough. Some, like stem bolts strip out and ruin expensive parts if they are too loose. Sometimes torques are listed just because that is the optimum torque for a fastener that size.
It sounds to me like everybody who never uses a torque wrench feels like they have enough experience to get it right without one. Everybody who uses one KNOWS their experience and feel isn't that good.
|Dunno 'bout that||grzy|
May 14, 2002 9:50 AM
|Been using and NOT using torque wrenches for years - and I never strip threads. For some things I'll always use the torque wrench (crank bolts and BB's) for other things I never use the torque wrench (just about everything else). When was the last time you used a torque wrench for a seat binder bolt or installing a deraileur? Fact is if you had to use a torque wrench for everything you'd never get anything done. At the end of the day I don't have a box of parts with stripped threads and the bikes I work on don't come apart. There are some people who simply shouldn't be allowed near any tools, ever. There is a lot to be said for experience and a finely developed sense of feel. |
In general it's not good to say something is impossible if it's being done.
May 14, 2002 3:24 PM
|At my work (automotive industry), I insist that the technicians use torque wrenches on all critical fasteners. But when I wrench on my own bikes, I rarely use one. I actually own several expensive Snap-On wrenches but they just sit and collect dust. The only thing I use them for is crank bolts and bottom brackets. Mind you, if I had a Newton stem or similar, I would put a torque wrench on it. For just about everything else, just snug it down and ride.|
|You and Grzy kind of proved my point!||Spoke Wrench|
May 15, 2002 4:09 PM
|Here we have two guys who consider themselves pretty adept mechanics with a good feel for tools and fasteners. Even these guys, however, say they feel it's wise to use a torque wrench on critical applications like bottom brackets.
Whoever would have ever thought Grzy, of all people, would have waffled the way he did in his reply?