Strange noise from Sram GX 11v

[Gianka1500]

hi guys,

I hear strange creaks coming from the rear of the bike on very bumpy descents with jumps, rocks etc., but even when I jump on the frame from a standstill.
I found the problem if I move the gear pulley assembly by hand as per this video : Has anyone already happened or does he know how to solve it?

The rear derailleur is a Sram GX 11speed - long cage - type 2.1

Thank

 

[Supratad]

Oil?

 

[Gianka1500]

tried but nothing

 

[Neeko DeVinchi]

Is your B tension screw loose?

 

[Gianka1500]

Is your B tension screw loose?

no, it is well adjusted and the derailleur works perfectly

 

[Supratad]

Its seems more of a click than a creak, happening at a specific point in the rotation.

 

[Tim22]

Its seems more of a click than a creak, happening at a specific point in the rotation.

Yeah, something is up. Went out and checked mine. Quiet

 

[Gianka1500]

Yeah, something is up. Went out and checked mine. Quiet

is yours a GX 11 speed type 2.1?

 

[Tim22]

is yours a GX 11 speed type 2.1?

Yup.