Trek Madone 9 seat cluster

Discuss light weight issues concerning road bikes & parts.
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Sabrerider
Posts: 3
Joined: Tue Jul 16, 2019 10:21 am

by Sabrerider

Hi all,
I recently got a Trek Madone 9 SLR. Very happy with the bike but one thing starts freaking me out.
Few days ago I noticed that the whole seat cluster has noticeable lateral play, where it is attached to the frame via the ISO speed hinge. It is not the seat post in the L-shaped part. The whole thing rocks left and right.
I did tighten the hinge bolt a bit already until the wobbling disappeared, but I found no torque values for that bolt. And it made scary sounds, while tightening it.

Has anybody experienced something similar, or found a proper torque value for that bolt?

Thanks for your infos!

Sabre

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MitchatTrek
Posts: 18
Joined: Wed Jan 16, 2019 10:04 pm
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by MitchatTrek

Sabrerider wrote:
Wed Jul 17, 2019 4:55 pm
Hi all,
I recently got a Trek Madone 9 SLR. Very happy with the bike but one thing starts freaking me out.
Few days ago I noticed that the whole seat cluster has noticeable lateral play, where it is attached to the frame via the ISO speed hinge. It is not the seat post in the L-shaped part. The whole thing rocks left and right.
I did tighten the hinge bolt a bit already until the wobbling disappeared, but I found no torque values for that bolt. And it made scary sounds, while tightening it.

Has anybody experienced something similar, or found a proper torque value for that bolt?

Thanks for your infos!

Sabre
I would bring your bike into your local Trek dealer to have them inspect. It sounds as though it may be overtorqued judging by the sounds it made - overtorquing carbon is risky. But if it was the main pivot bolt under the cover. You tighten the non drive side of it to 8 Nm.

But definitely bring it to your dealer and have them take it apart in that area and inspect the frame.
Community Manager | Trek Bicycle Corporation | www.trekbikes.com

Sabrerider
Posts: 3
Joined: Tue Jul 16, 2019 10:21 am

by Sabrerider

Thanks for the quick answer and the torque value.
I will get it checked up with the dealer.

Sabre

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MitchatTrek
Posts: 18
Joined: Wed Jan 16, 2019 10:04 pm
Contact:

by MitchatTrek

Sabrerider wrote:
Fri Jul 19, 2019 7:35 am
Thanks for the quick answer and the torque value.
I will get it checked up with the dealer.

Sabre
You're welcome! :beerchug:
Community Manager | Trek Bicycle Corporation | www.trekbikes.com

jcnz
Posts: 15
Joined: Tue Dec 26, 2017 9:53 am

by jcnz

Yes, exact same thing happened with mine after a few months. 2.5 months later, a new seat setup arrived from trek. Couple of rides in and it's still ok.

The dealer mentioned that trek had seen it before but not often....

Glad the frame has a lifetime warranty because it's awesome ...

Sent from my ALP-L29 using Tapatalk


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