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Torque wrenches
I'm a keen cyclist but very much the beginner in terms of maintainence. I'm
keen to start learning though and am beginning to collect together various tools. I already have a fairly cheap Draper torque wrench with a range of 20-80Nm which should make it usable for crank arms (40-50Nm) although apparently cheap torque wrenches go out of calibration quickly and are inaccurate towards the ends of their range. Another problem with it is that it will only measure torque on right hand threads which isn't very helpful for bottom brackets. How essential are torque wrenches for home maintainence and what sort of damage can one do without one? I understand that having the correct torque for crank arms is pretty important. Could anyone recommend a good torque wrench for a beginner (the local bike shop has warned me off of beam type torque wrenches)? I apologise if this is a basic question but as I say, I'm new the the mechanics side of cycling and therefore lacking somewhat in the confidence department. Thanks for any thoughts, With Kind Regards, Paul. |
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Torque wrenches
Paul Davis wrote:
Another problem with it is that it will only measure torque on right hand threads which isn't very helpful for bottom brackets. That's ok for Italian thread BBs. How essential are torque wrenches for home maintainence and what sort of damage can one do without one? I understand that having the correct torque for crank arms is pretty important. You're more likely to under-torque a crank bolt than over-torque it without a torqge wrench. Could anyone recommend a good torque wrench for a beginner (the local bike shop has warned me off of beam type torque wrenches)? Why is that? Sears sells a beam type for around $20 that covers 0-75 ft-lb. That would be fine for crank arms and cassette locknuts. http://tinyurl.com/2wz8l Art Harris |
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Torque wrenches
So "Paul Davis" says:
I apologise if this is a basic question but as I say, I'm new to the mechanics side of cycling and therefore lacking somewhat in the confidence department. If you can accurately estimate how much weight you are lifting at any given time you can learn to accurately apply torque. If you're a chronic wimp or strongarm gorilla maybe a torque wrench is an idea but most mechanics I know don't use one very often. Understanding what a foot pound is and the dynamics of how threads engage is helpful. jeffb |
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Torque wrenches
RE/
How essential are torque wrenches for home maintainence and what sort of damage can one do without one? I understand that having the correct torque for crank arms is pretty important. I'd say it has something to do with the sensitivities of the worker. I'm like Magilla The Gorilla without a torque wrench. In fact I bought one after frying a number of fittings/screws. To me, the most needful are those little alu screws/sleevs that hold the chainrings in place. Now that I have a couple of them, I wouldn't tighten many bolts without one. Others have probably worked day-in-and-day-out for years without ever needing one. -- PeteCresswell |
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Torque wrenches
In article , Paul Davis says...
Could anyone recommend a good torque wrench for a beginner (the local bike shop has warned me off of beam type torque wrenches)? Beam torque wrenches work just fine, do not go out of calibration, measure both left and right handed torque and are cheap. When used on cars sometime the nut or bolt is in a position that makes it impossible to read the scale. Doesn't happen on bikes. -- Ed |
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Torque wrenches
"Harris" wrote in message ... snip Could anyone recommend a good torque wrench for a beginner (the local bike shop has warned me off of beam type torque wrenches)? Why is that? Sears sells a beam type for around $20 that covers 0-75 ft-lb. That would be fine for crank arms and cassette locknuts. http://tinyurl.com/2wz8l I've rebuilt V8 engines with a Sears Craftsman's torque wrench and have used it for many other things as well. They work just fine. All the engines have outlasted the cars BTW (c: C.Q.C. |
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Torque wrenches
Ed wrote in :
Could anyone recommend a good torque wrench for a beginner (the local bike shop has warned me off of beam type torque wrenches)? Beam torque wrenches work just fine, do not go out of calibration, measure both left and right handed torque and are cheap. When used on cars sometime the nut or bolt is in a position that makes it impossible to read the scale. Doesn't happen on bikes. Beam torque wrenches are $20 at Sears. They are perhaps not as accurate as the clicker type, but they are fine for bikes. |
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Torque wrenches
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