Which torque wrench - 1/2 or 3/8 inch?

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marc2131
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Postby marc2131 » 03 May 2015, 08:13

Someone is buying a Giant Propel in the next few weeks :P
Want to invest in a proper Torque Wrench. Notice there are one-quarter inch and three-eighth inch sets available for purchase.
Which one should be purchased?
Last edited by marc2131 on 03 May 2015, 10:55, edited 1 time in total.

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mikesbytes
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Postby mikesbytes » 03 May 2015, 09:54

You need to buy one that's specific to cycling. The ones at bunnings etc don't have the precision to work with CF

This is the one I have

Image

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marc2131
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Postby marc2131 » 03 May 2015, 10:09

Was thinking of something like this from Torpedo7.
http://www.torpedo7.com.au/products/T7T ... wrench-set

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mikesbytes
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Postby mikesbytes » 03 May 2015, 14:37

That's the same one as mine. The identical product is available in multiple brands

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marc2131
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Postby marc2131 » 03 May 2015, 19:02

So does it matter if one gets a half inch or three-eighth inch set?

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mikesbytes
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Postby mikesbytes » 03 May 2015, 20:35

The amount of torque applied is not going to be a consideration so you don't need to worry about the head size unless you want it to be the same as your existing socket set. The torque range should go as low as 4nm

My set is 1/4" and to be honest I had to go and look at it to know that, the head size is not really a consideration

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marc2131
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Postby marc2131 » 04 May 2015, 05:54

Thanks Mike

Jdubs
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Postby Jdubs » 04 May 2015, 10:53

What? Marc is moving to carbon? Shock horror.

If you want to go cheap Marc? The lifeline branded ones are $50 or less at wiggle.

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marc2131
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Postby marc2131 » 04 May 2015, 14:29

Carbon? Wat's dat?

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mikesbytes
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Postby mikesbytes » 04 May 2015, 18:12

Jdubs wrote:What? Marc is moving to carbon? Shock horror.

If you want to go cheap Marc? The lifeline branded ones are $50 or less at wiggle.


This one? $85 with sockets

http://www.wiggle.com.au/lifeline-professional-torque-wrench/

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Adrian E
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Postby Adrian E » 09 May 2015, 01:02

For most carbon parts a torque wrench with a quarter inch driver will work best. Torque wrenches are designed to be accurate in the middle of their range. I.e 3 to 20nm will cover most fasteners on a bike. You only need a large torque wrench for things like bottom brackets and cassette lock rings. I have seen several carbon bikes damaged using a torque wrench incorrectly. The most important part of the tool is using it correctly.

http://m.pinkbike.com/news/To-the-Point ... -2013.html


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