Wide offset 34 sprocket ?

Gropec

Member
Dec 22, 2021
40
26
South of France
Hi Guys!!
Happy new year from France!!

I did my 1st ride with my Trek R1il 9.8 2021.
What a great bike it is !!+!🤩
Nervous, and it fell so lighter than my previous Moustache game 10
Very very Happy !!

However, i have noticed that the clearance between the base and 34 sprocket is ridiculous!!??
And the chain and or a bent sprocket can occur damage on the carbon base!!

How can i fix it?

Does a 34 sprocket exist with a wide offset?

Thanks

I also posted on FB

20220102_172531.jpg


20220102_172516.jpg
 

Mikerb

E*POWAH Elite World Champion
May 16, 2019
6,145
4,676
Weymouth
A chainring for a boost rear end ( 148 rear hub) is usually described as 3mm offset or boost. Your chainring is direct mount so not a lot you can do if , as is likely, the existing chainring is marked as 3mm offset or boost. You could of course fit a 32t direct mount 3mm offset chainring which would maintain the chainline but increase the clearance with the chainstay.

Do a search on the forum because I am pretty sure others have tackled your problem by changing the direct mount chainring for a spider and 4 bolt chainring. Otherwise you can
 

Gropec

Member
Dec 22, 2021
40
26
South of France
A chainring for a boost rear end ( 148 rear hub) is usually described as 3mm offset or boost. Your chainring is direct mount so not a lot you can do if , as is likely, the existing chainring is marked as 3mm offset or boost. You could of course fit a 32t direct mount 3mm offset chainring which would maintain the chainline but increase the clearance with the chainstay.

Do a search on the forum because I am pretty sure others have tackled your problem by changing the direct mount chainring for a spider and 4 bolt chainring. Otherwise you can
🙏
 

GrandesRoues

Member
Jul 26, 2019
176
89
Alpes Françaises
Joli vélo et pneus, identique au mien !
Il faut vérifier le bon serrage et centrage du bras arrière. Sur le mien j'ai plus de jeu...
Sinon tenter une petite rondelle derrière le plateau (et bien le resserrer au couple préconisé, assez élevé).
 

Gropec

Member
Dec 22, 2021
40
26
South of France
Joli vélo et pneus, identique au mien !
Il faut vérifier le bon serrage et centrage du bras arrière. Sur le mien j'ai plus de jeu...
Sinon tenter une petite rondelle derrière le plateau (et bien le resserrer au couple préconisé, assez élevé).
Salut,
En effet le vélo est magnifique 😁, je viens de récupérer la Olhins 38 en 170mm, hate de la montée !!!!
Il ne me semble pas avoir du jeu sur le bras arrière.
J ai deja tenté la rondelle mais il ne reste plus assez de filetage pour bien serré le plateau.
J ai réussi a avoir un plateau Race Face en 55mm de ligne de chaine et c est a mon avis se qu il faut faire. La chaine n est pas trop croisée en vitesse 12 et l'espace entre le plateau et la base et plus grand.
Malheureusement la forme de ce plateau étant différente de celui d origine, ça passe trop juste au niveau des visses du guide chain et ça ne me plaît pas!
Bref j y était presque🤷‍♂️.

Tu me confirme que sur le tiens le plateau est tres près de la base?

A+
 

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