Fitting carbon components - should I have a torque wrench?

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Daniel B
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Fitting carbon components - should I have a torque wrench?

Postby Daniel B » Wed Jan 16, 2013 08:24 am

Hello all,

I have a fairly comprehensive toolkit from Wiggle, which pretty much covers me for any jobs I am likely to carry out on my bikes.

I do not have a torque wrench, and have a fair few carbon bits - would it be advisable to purchase one, and if so are there any recommendations? And would it need to be cycling specific, or would any torque wrenceh suffice?

Is there a magic way to finding out what amount of pressure you would need for seatclamp\stem\handlebars etc, or would they all be the same?
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Marin Palisades Trail 91 and 06
Marin Highway One 05 (Drop bar conversion)
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bernithebiker
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Re: Fitting carbon components - should I have a torque wrenc

Postby bernithebiker » Wed Jan 16, 2013 08:49 am

Quite useful to have one that goes from 2 to 20Nm, and a bonus to have a bigger one than can do up to 80.

I have a small Syntace one that works well and does almost everything on the bike. (the bigger one I use on the car/quad/tractor).

There'll be a webpage somewhere giving recommended torque for different size bolts, (but of course different manufacturers and materials (alloy/carbon) will vary these figures).

As a rough guide, M5 (like on many stems) is about 4 to 6Nm, M6 (seat collar, etc.) about 6 - 8Nm.

Normal allen keys are different lengths for a reason. As long as you don't go crazy hanging off a key, it should be difficult to knacker a bolt using the right size (length) key.

In terms of bolt/thread strength, it's steel, Ti, alloy, in that order.
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Daniel B
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Re: Fitting carbon components - should I have a torque wrenc

Postby Daniel B » Wed Jan 16, 2013 09:28 am

Thanks for your reply,

The two I have found so far are:

Shimano:
http://www.fatbirds.co.uk/2799/products/Pro-3-15-Nm-torque-wrench-set.aspx?utm_source=Froogle&utm_medium=PriceComp&utm_term=Froogle&utm_content=None&utm_campaign=PriceComp1
Image

Giant:
http://www.cyclestore.co.uk/productDetails.asp?productID=20794
Image

Both get excellent reviews on Bikeradar, and although the Shimano is technically better value I am sure, it only covers 3-15, where as the Giant covers 2-24.
Felt F70 05 (Turbo)
Specialized Langster Monaco SS 09
Marin Palisades Trail 91 and 06
Marin Highway One 05 (Drop bar conversion)
Scott CR1 SL 12
Cannondale Synapse Adventure 15
Planet X Exocet 2 13
Shared usage: Spesh Tri Cross Sport, Kona Minute

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sungod
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Re: Fitting carbon components - should I have a torque wrenc

Postby sungod » Wed Jan 16, 2013 10:41 am

of those two i'd get the giant

i've got one of these...

http://www.amazon.co.uk/Sealey-STW1012- ... B000RO1ZCG

comes with calibration certificate, mine is now in it's 4th year, still matches a calibrated wrench at work

for bits i got...

http://www.amazon.co.uk/Draper-Expert-2 ... sim_diy_13

...bit excessive maybe, but it's sometimes handy to have the longer shaft bits, and torx fasteners seem to be creeping onto bikes more these days, so it's come in useful, no wear so far, excellent quality
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Daniel B
Posts: 4303
Joined: Wed Mar 08, 2006 12:43 pm

Re: Fitting carbon components - should I have a torque wrenc

Postby Daniel B » Wed Jan 16, 2013 10:57 am

sungod wrote:of those two i'd get the giant

i've got one of these...

http://www.amazon.co.uk/Sealey-STW1012- ... B000RO1ZCG

comes with calibration certificate, mine is now in it's 4th year, still matches a calibrated wrench at work

for bits i got...

http://www.amazon.co.uk/Draper-Expert-2 ... sim_diy_13

...bit excessive maybe, but it's sometimes handy to have the longer shaft bits, and torx fasteners seem to be creeping onto bikes more these days, so it's come in useful, no wear so far, excellent quality


Thanks SG - this is uber useful - I did not really know what I needed, and so was looking for cycling specific sets - howver if what you have posted above does the same job as the Giant (And a whole lot more I guess with the accessorie set?) then that makes a whole load more sense surely, and for a few £'s more.
Felt F70 05 (Turbo)
Specialized Langster Monaco SS 09
Marin Palisades Trail 91 and 06
Marin Highway One 05 (Drop bar conversion)
Scott CR1 SL 12
Cannondale Synapse Adventure 15
Planet X Exocet 2 13
Shared usage: Spesh Tri Cross Sport, Kona Minute


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