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PostPosted: Thu Apr 11, 2013 3:51 am 
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Joined: Fri Oct 24, 2008 3:10 pm
Posts: 41
I had the same problem with my Madone seat mast and they told me to pound sand (always torque wrenched) . Glad it worked out better for you.


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Posted: Thu Apr 11, 2013 3:51 am 


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PostPosted: Thu Apr 11, 2013 8:50 am 
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Joined: Sat Sep 05, 2009 11:20 am
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It doesn't matter what the max torque of the seat mast is, it might be higher than the max torque the seatpost can take.

The amount of of torque that should be applied is the minimum required to hold the mast in place without slippage.

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PostPosted: Fri Apr 12, 2013 2:24 am 
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Joined: Tue Dec 23, 2008 2:57 pm
Posts: 651
Location: NYC
Fisherfreerider wrote:
The max torque on our seat masts is 7nM and the Bontrager preset torque wrench is 5nM so he is not over-torquing anything.


The correct torque is the minimum needed to fix the seat mast securely without going over the MAX torque spec for the BOLT. So if 4Nm is sufficient to hold the seat mast, then why crank it to 5Nm. The OP stated that he always used the 5 Nm preset key, yet the seatmast still damaged the seat tube. Assuming he did everything correctly are you saying he should confidently crank it to 5 Nm again?
EM3

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