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PostPosted: Thu Feb 09, 2017 6:54 pm 
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Joined: Thu Feb 09, 2017 6:46 pm
Posts: 11
Hello hello,
I was wondering how tight I should tighten my stem on the carbon steer of my fork ?

The stem (Zipp) says 5nm but that seems a too tight.
Scared I crush the steer !

To all CAAD10 owners - what do you recommend ?

I was thinking about 4nm or is that also too much ?

Cheers and thanks for helping !!


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Posted: Thu Feb 09, 2017 6:54 pm 


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PostPosted: Thu Feb 09, 2017 7:02 pm 
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Joined: Wed Dec 30, 2015 4:04 pm
Posts: 118
I use 3.5 Nm but I use beam style torque wrench.


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PostPosted: Thu Feb 09, 2017 7:41 pm 
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Joined: Sun Feb 03, 2008 3:04 pm
Posts: 62
Location: Bloomfield Hills, Michigan
5nm. You won't crush the steerer but I would also recommend that you get a good torque wrench. I have this one from Amazon:https://www.amazon.com/gp/product/B00C5ZL2EG/ref=oh_aui_detailpage_o05_s00?ie=UTF8&psc=1


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PostPosted: Thu Feb 09, 2017 10:49 pm 
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Joined: Mon Jul 26, 2004 1:06 pm
Posts: 1094
CAAD10 steerer is designed to have zero spacers above stem and relies on the compression plug and cap it comes with to support the inside of the steerer underneath the stem.

The steerer will cope with 5nm when used with the correct headset compression assembly.

If I wasn't using the specific headset compression assembly I'd be inclined to use a 5mm spacer above the stem so that it wasn't clamping right on top of the steerer. It steerer should still cope with 5nm but it depends on the stem clamp slot. Square edge vs rounded edge, angled slit versus vertical slit, opposing bolts versus single sided bolts.

Remember that with lots of grease on the bolt threads it will read a lower torque. Some assembly compound (carbon paste) between stem and steerer is a good idea to stop movement with lower torque. The stem probably won't slip at 4nm with assembly compound and grease on threads.


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PostPosted: Fri Feb 10, 2017 12:22 am 
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Joined: Wed Sep 14, 2016 8:51 pm
Posts: 469
Location: RVA,USA
Just don't make the stupid mistake I did with my hylix seatpost.
Teflon grease is one of the slickest around. I only lowered my torque by 25% and crushed it. After looking it up Teflon grease requires a torque reduction of 50%

Sent from my SAMSUNG-SM-G935A using Tapatalk

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2016 Cannondale CAAD12


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PostPosted: Fri Feb 10, 2017 1:35 am 
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Joined: Tue Apr 07, 2015 5:40 pm
Posts: 583
I wouldn't be worried using 5 NM or a tad under it, but I would be against using any compounds between the steerer and stem.


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PostPosted: Fri Feb 10, 2017 7:20 am 
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Joined: Thu Feb 09, 2017 6:46 pm
Posts: 11
grover wrote:
CAAD10 steerer is designed to have zero spacers above stem and relies on the compression plug and cap it comes with to support the inside of the steerer underneath the stem.

The steerer will cope with 5nm when used with the correct headset compression assembly.

If I wasn't using the specific headset compression assembly I'd be inclined to use a 5mm spacer above the stem so that it wasn't clamping right on top of the steerer. It steerer should still cope with 5nm but it depends on the stem clamp slot. Square edge vs rounded edge, angled slit versus vertical slit, opposing bolts versus single sided bolts.

Remember that with lots of grease on the bolt threads it will read a lower torque. Some assembly compound (carbon paste) between stem and steerer is a good idea to stop movement with lower torque. The stem probably won't slip at 4nm with assembly compound and grease on threads.



That's the kind of answer I was looking for, thanks ! :)
So does that mean I should only use the cannondale expander or what do you mean with "using the specific headset compression assembly" ?

Thanks y'all for the great advice !


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PostPosted: Fri Feb 10, 2017 12:02 pm 
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Joined: Sat Mar 16, 2013 9:21 am
Posts: 328
Just use the Cannondale expander per manufacturer's instructions and don't worry about it. No reason not to, with the newer version being just 12 grams for the whole thing (compression plug and top cap).


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PostPosted: Fri Feb 10, 2017 6:17 pm 
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Joined: Wed Sep 14, 2016 8:51 pm
Posts: 469
Location: RVA,USA
Image
You don't mean this do you? Send me a link to the 12g one!

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2016 Cannondale CAAD12


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PostPosted: Sat Feb 11, 2017 6:11 pm 
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Joined: Sun Feb 03, 2008 3:04 pm
Posts: 62
Location: Bloomfield Hills, Michigan
I should've mentioned that I don't lube them and I use the stock top cap.


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Posted: Sat Feb 11, 2017 6:11 pm 


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