Jumping chain.

[gavroche]

On my Specialized Roubaix Elite, the chain jumps on the jockey wheel, always on the same lenght of chain, about 8 inches long. It does it in all the gears and I dare not ride it , just in case. I have checked the chain to see if something was sticking out from it , but all is clear. Any idea what it can be? My lbs is still closed so can't take it there.

 

[Sharky]

Stiff links or not flush with the rivets?

 

[gavroche]

Stiff links or not flush with the rivets?

No, all the rivets are flush.

 

[Mo1959]

Sounds like a stiff link. Can you gently work that section of chain in your hands and see if it maybe eases it.

 

[I like Skol]

Sounds like a stiff link, but strange that it is over such a long length. Has this started to happen suddenly and have you done anything to the drivetrain before it started misbehaving?

 

[gavroche]

Actually, just checked over what length again and it is only about 4 inches, I was guessing from memory before. Last time I used that bike was before the lockdown so can't remember when it started misbehaving. Have been using only my Cube lately. I will follow @Mo1959 advice and see what happens.

 

[gavroche]

@Mo1959 you are a star.
I followed your advice and found that two links were stiff and after loosening and lubricating them, I am pleased to report that all is well. The chain goes round smoothly in all gears. As a treat, I will take my Roubaix for a deserved ride tomorrow ( weather permitting of course.)

 

[I like Skol]

Had you washed your bike before putting it away?

 

[gavroche]

Had you washed your bike before putting it away?

I never wash my bikes but spray them with muc off and wipe afterwards with a clothe.

 

[Ajax Bay]

I will take my Roubaix for a deserved ride tomorrow ( weather permitting of course.)

Don't stray too far from home, will you. The Dragons will get you.