MCFK Front Derailleur Clamp Torque

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audiophilitis
Posts: 479
Joined: Sun Jul 29, 2012 12:49 am

by audiophilitis

Just replaced a 27 gram Campagnolo FD metal clamp with a 12 gram MCFK one. Instructions say torque to 6nm -- I applied carbon paste and torqued it down to 2nm. Can't get myself to torque it beyond 2nm and it appears to be plenty tight. Same with the MCFK seatpost clamp -- instructions say torque to 6nm. I torqued it down to 4nm with carbon paste and have ridden about 100 miles without slippage.

The carbon bands on these clamps are just so thin -- wondering if any of you who use these clamps actually torque them down to the specified value.

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steventran
Posts: 176
Joined: Sat Mar 19, 2011 7:31 pm

by steventran

I have both and I torque them to 5Nm. I usually torque things to just below spec.


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BRM
Posts: 817
Joined: Sun Mar 16, 2014 3:43 pm

by BRM

Mosttimes given Nm is maximum torque.
The torque is normally for the bolt. When nothing else mentioned its for a DRY bolt.
Lube is a factor that has effect on torque. (Lubefactor)
With lube you need to lower torque significantly.

xena
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by xena

I just tightened until it worked. I used carbon paste. I really hate the torque wrench. I have no idea how accurate they are but my friend use's them and swears by them. Every time he uses one on his custom Viner I wince. I just go by feel. Been ok so far.
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