Berk on a Bike
Veteran
- Location
- Yorkshire
Yesterday, coming to the top of a hill I had to change down into the "help the aged" gear (small ring, biggest sprocket). When I did, I heard some almighty rattling and the chain seemed reluctant to engage. On inspection I found the chain to be really rubbing the inside of the derailleur cage. In fact it was rubbing a bit in the 2nd biggest sprocket too. I thought this was odd as it had been okay in recent days.
I wasn't relishing mucking about with cables or limit screws. Then I noticed a pin was partly sticking out of the derailleur mechanism. I hadn't noticed it before but was sure it shouldn't be sticking out, so I pushed it back in using pliers. Problem was solved. The derailleur cage clearance was fine again.
My question is why did the pin come loose? It it a sign of trouble ahead? I'm concerned it might loosen again and fall out completely. The end I could see sticking out had a milled surface and it seemed a snug fit when I pushed it back in.
The pin is circled in the attached picture.
I wasn't relishing mucking about with cables or limit screws. Then I noticed a pin was partly sticking out of the derailleur mechanism. I hadn't noticed it before but was sure it shouldn't be sticking out, so I pushed it back in using pliers. Problem was solved. The derailleur cage clearance was fine again.
My question is why did the pin come loose? It it a sign of trouble ahead? I'm concerned it might loosen again and fall out completely. The end I could see sticking out had a milled surface and it seemed a snug fit when I pushed it back in.
The pin is circled in the attached picture.