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Torque for stem on carbon stearer(9 posts)

Torque for stem on carbon stearerixiz
Jul 24, 2001 5:49 AM
What is the appropriate torque for an ITM millenium stem on a carbon steerer ? On the stem its printed 29-99 110 . I know my stem is the 110mm but the 29-99 what is that ? IS it the torque recommendation ?

thanks for any input
sounds more like a date codejw25
Jul 24, 2001 7:07 AM
With carbon steerers, I'd definitely want some torque recommendations to follow too. ITM's website is www.itm.it, but the Java isn't working properly on my computer, so I can't pull anything up. At the very least you can try the customer service email. I asked them about a bar/stem compatibility, and I got an answer in 2 days.
re: Torque for stem on carbon stearerseamus
Jul 24, 2001 7:09 AM
I'd bet that the 29-99 part is a manufacturing code for when your stem was made. As for torque specs (they rarely print them on anything other than the manual) check your fork's website or call tech support. THEY're the ones who will have specific torque requirements for their steer tube...
re: Torque for stem on carbon stearermmaggi
Jul 24, 2001 7:17 AM
From the www.ITM.IT

"It is important to tighten the locking screws using a torque wrench and always respect the torque values indicated in the instruction sheet which come with the product."
Whatever it Takes.grzy mnky
Jul 24, 2001 8:21 AM
Just use a regular 5 mm Allen wrench - you'll really have to get really agro to strip the bolts, but I suppose it's possible, so do it on a rest day.

FWIW - Park Tools or someone had a torque chart for vaious sized bolts.
Not much experience?TJeanloz
Jul 24, 2001 9:32 AM
I'm guessing you're not familiar with the Millenium stem? The bolts are 4mm and VERY easy to strip. So easy that they include a mini allen wrench with the stem (it's only about 1" long, so you can't get much leverage.) Add to that the fact that ITM engineers have concluded that most mechanics are over-torquing stems, causing stem and fork failure, and I'd recommend using a torque wrench. I believe torque spec for the Millenium is 12 Nm- but I'm not sure enough to do it without looking for a better source.
Nopegrzy mnky
Jul 24, 2001 12:57 PM
Obviously one should follow the mfr.'s spec, but it sounds like a pretty marginal product. Instead of making their design robust they cut off the Allen wrench. Beautiful. Can't figure that this is much of a selling point.
re: Torque for stem on carbon stearer650C rider
Jul 24, 2001 11:38 AM
Below is a copy of Email I rec from Deda directly when asking them the same question using a deda newton 31.7 threadless on full carbon steerer this should give you an idea.
Hope it helps

Ray Still

Dear Ray
thank you for your message.

Torque
Newton screws M5
Newton meter 8
Inch-pounds 71
foot-pounds 5,9
these are the latest recomended tighteen torque.

Torque is the same for same matching diameter / material of screw and
material of thread
So, same torque for h/b clamp and for fork collar screws.

Best regrds

Fulvio
Sure is.......and that is in ft lbs :~)2 Phil's and a Dean
Jul 24, 2001 10:42 PM
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