torque wrench - range
 

I'm about to buy a torque wrench, what torque range
covers all screws settings for a modern bike?
Thanks

0-600 inch-pounds

I have yet to find a clicker-type of torque wrench that covers all ranges. On the low end, I need ~ 60 in-lb (5.2 Nm) for carbon parts up to 360 in-lb (40 Nm) for the cassette lock ring.

If anyone know of one, let me know!

i have found the harbor freight inch lbs 1/4 drive torque wrench is good enough for most bicycle tasks. use freewheel / freehub type lube on torque wrenches.

http://www.harborfreight.com/1-4-qua...ench-2696.html
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you need 2

Yes, you need two: one for low torques (up to around 10-12 Nm) and a second torque wrench for higher torques (up to 60-100Nm). The second wrench is not accurate for low torques, so this is why you need two.

I'm going to jump in with my own question (it's related).

I have the 0-600 inch pounds. I don't understand Nm very well.

Do I need a bigger, or a smaller one?

I'm a bit new at this, but, I'm slowly figuring it out. I just need a one word answer at this point.

Thank you.

I have this one from Nashbar,

http://www.nashbar.com/bikes/Catalog...=torque+wrench

It goes from 0-24 Nm.

Then I have the Park TW-2, which goes from 0-70Nm.

I use the Nashbar click type for small bolts, stems, etc and the Park for bottom brackets and cassette lock rings.

Nm (Newton-meter) is just torque given in metric terms. 1.0 pound-ft= 1.36 N-m and 1.0 pound-in = 0.113 N-m. As an example, the 40 N-m recommended for tightening a cassette lockring is 29 pound-ft or 363 pound-in. Your 0-600 pound-in torque wrench covers 0-68 N-m. Many torque wrenches have dual scales showing both values. You need a smaller one, say 0-60 pound-in (0-7 N-m), for tightening small bolts like steerer clamp and handelbar bolts.

+1

Smaller.

Thank You.

Search the archives. We had a torque wrench thread like this one recently.

yea 2, sockets and bits 1/4 and 3/8 type fitting.. ..

1 Newton-meter is equivalent to a force of 1 Newton on the end of a lever 1 meter in length, the same way as 1 foot-pound is a force of 1 pound on a 1 foot lever. Your torque wrench should be suitable for anything up to about 70 Nm.

This is exactly right but what's missing is that most people have no idea what a Newton is. Newton= force required to accelerate a 1 kg mass at 1 meter/sec^2. All clear?

Indeed. Good ol' metric system with its consistency of units :P 1N=1kgm^2. On Earth, 1kg weighs approximately 9.81N