Lukinou

Hello team.

Sorry for my bad English, I am french
Anyone experiencing issue with the isospeed?
My isospeed move each time I bike.
I well tight the top tube pinch bolt before the damper preload set screw to 2NM
Some ideas?
Thanks for your help

OrenNoah

Your English is excellent.

There is a known issue with the Madone SLR Isospeed bolt loosening during riding. The problem was noticed and addressed by the race team. I, too, had a heck of a time with it.

The official solution, developed by the race team, is to use Loctite 277 and torque to 8 nm. That particular Loctite formulation is key. Other, more common, Loctite formulations won’t work. I know, because the local Trek mechanic and I struggled for months for a solution until word came down from the race team mechanics.

Be sure to clean the Isospeed bolt assembly before applying the Loctite 277, torque to 8 nm and then wait 24 hours for it to cure fully.

Good luck, or bon chance!

Lukinou

Thanks for your quick response
So I have to remove all the isospeed?
-Clean all the isospeed system after remove it?
- I install back all the isospeed system
- I move the isospeed to my choice
- I begin to Tight the top tube pinch bolt
- I apply the loctite 277
- I Tight the damper preload set screw to
8Nm instead 2nm (it will not brake the carbon? It's not the same NM)

I don't know the loctite 277. Is it possible after applying the loctite and bike 2 or 3 month ( for exemple) change the settings of the isospeed or after its impossible?


This issue if for all the madone with isospeed? The bike is new 600km I already contact the store to tell them the issue. If they manage to swap the isospeed system the issue will be fixed? ( WITH, I HOPE, a good isospeed and not defect one) or its only the screw?

How trek can sell bike +10 000euros with this problem. It's incredible

OrenNoah

I am referring to the isospeed pivot bolt, located next to the seatpost. That is what should be removed, cleaned and reassembled.

I am not referring to the slider or the bolt that goes on the underside of the top tube to tighten the slider.

Chi_Z

thank god my bike has regular seatpost clamp and regular round seatpost

choddo

Salut!

This has not happened to me. It only moves if I hit a bump and even then I rarely notice it.

Lukinou

your are lucky

Lukinou

i try to send a message with pictures but i don't have send 10messages yet in the forum.
i am not autorized to do it yet

Lukinou

so the issue about the slider that move can be fixed with the pivot bolt?

OrenNoah

No. The pivot bolt won’t affect the slider.

If I recall correctly, there is a spacer that goes above the slider. Maybe yours is missing or out of position.

Lukinou

hello sorry for the late reply.
but i can't do more than 5reply every 24h.

yes i am talking about the slider who moves when i ride how can i fix it?

Simon776

Hi I have this “wobble” problem on my 2019 Madone and have to tighten Pretty much every ride. Do you have any pictures or info of the washers. I have a Red one and a slightly smaller silver one in mine but only in the one side? Is this correct ? Seems wrong to me! I would have thought one either side? I have lost confidence in my LBS so any advice would be really appreciated

colnago62

Call or email Trek directly about the problem.

Simon776

Thank you for the quick response.. I was hoping someone may have some info or advise as it seems a simple fix.

choddo

Je suis tres en ****** avec cette réponse mais tu dois retirer les rondelles de ces deux boulons. Serrez comme d’habitude. Je pense que c’est 5Nm ?

Cela pousse le bloc légèrement plus fort contre la tige de selle. Recommandé par Trek. Il a arrêté le mien de glisser.

edit: oh great, the forum filter thinks the French for “late” is the same as the English insult for someone with learning difficulties. Les asterisques ci-dessus signifient “r-e-t-a-r-d”

Lukinou

Hello thanks for your answer

Donc je dois retiré les rondelles qui se situe où ?
Au niveau du slider ou à l'arrière de la tige de selle ?
Thanks

Lukinou

Hello thanks for your answer

Pour information mon revendeur m'a changé la tige de selle en garantie avec l'isospeed ainsi que les vis à l'arrière de la tige de selle

Donc je dois retiré les rondelles qui se situe où ?
Au niveau du slider ou à l'arrière de la tige de selle ?
Thanks

choddo

Premièrement, peux-tu décrire à nouveau ton problème ? Est-ce que la selle tombe ?

Si c'est la cas...
J'ai une photo mais je ne peux pas publier avant dix messages.

Sur les deux boulons hex de 5 mm à l'arrière de la tige de selle que tu vois à travers la fente. Ceux montrés juste au début de la vidéo "Trek Madone 2019 Build | Cycling Lounge" sur youtube. La tige de selle devra glisser pour le faire. Tu dois les couper avec des cisailles. J'ai regardé un mécanicien d'atelier faire le mien.

Maintenant, le mien ne glisse pas en roulant

Lukinou

Re
Merci de ta réponse

Non ma tige de selle ne tombe pas
Dans les nouveau madone il y a une réglette qui permet de régler le vélo en souplesse ou en dureté en fonction des besoin
Regarde cette vidéo à la seconde 00:50
New Trek Madone Exploded
YouTube · PelotonTV
27 juil. 2018

Simon776

My seat post moves from side to side?Iso speed bolt.. Just wondered if anyone else has had a similar problem and perhaps knows of a fix, or solution

choddo

Yeah, same problem developed in the last few months. I have to keep tightening up the isospeed pivot bolt. 8Nm on the non-drive side with another hex key holding the other side still.

There's the solution posted up-thread about the Loctite I think.

Simon776

Thanks for getting back to me so quick .. I did read that but the Loctite 277 is strong stuff and I was worried I wouldn’t be able to remove the bolt if required at a later date. Have you used it

choddo

No I haven't. I'm living with adjustments for now.

Yeah - "Breakaway torque M10 bolts: 32Nm" - that's a decent amount of force needed.

choddo

Oui, je connais bien ce composant

D'accord, le petit curseur (?) noir bouge quand tu fais du vélo ? Je pense que le mien a un petit morceau de caoutchouc entre le curseur en plastique et le tube supérieur (comment dis-tu "top tube" en francais?). Bien que je ne puisse pas en voir un dans cette vidéo. Peut-être que mon magasin de vélo l'a ajouté.

Lukinou

oui curseur noir bouge quand je fais du velo et surtout a cause de l'etat des routes. dés qu'il y a des trou ou que la route est dans un sale etat le curseur se met à bouger tt seul
j'ai bien le petit bou en plastique entre le top tube et l'isospeed.
a savoir Trek a deja changé l'isospeed complet ainsi que les vis a l'arriere de la tige de selle
a part changer mon cadre je ne vois pas quoi faire.
par contre Trek ne veut pas me changer de cadre