So I had my bike up in the workstand cleaning the gunk after the very, very wet ride I had earlier. In the lower gears, the chain jumped off the lower jockey wheel, jamming between the jockey and cage.
Not being quite sure what was causing it I started to look into it. I initially didn’t think it could be Todo with the wet ride so I looked at the jockey, not worn, so cleaned it off and ensured it still spun freely. Put it back on and the same thing happened. Ok, perhaps the derailleur cage is bent. Nope, that was fine, so check the hangar, that’s perfectly straight.
Could it be the chain? Time to break out the chain cleaner. A good scrubbing of the chain, and bingo, no skipping off the jockey. So all I can think of is that some filth had worked into a chain link causing it to be skipping off the jockey.
Been quite a maintenance heavy week. I decided to change the cassette and chain, and after changing out the chain there was a terrible metallic scraping noise from the front derailleur.
I could not see where it was scraping on the derailleur, so I changed the cabling, reset the derailleur. Still the scraping. Looking at the inner chainring, there was a slight deformity to some of the teeth. Nothing major, but it was enough to keep hold of the chain on each rotation.
So, decided to replace the inner ring, as it had done nearly 3k, but finding one was harder than I thought. These things where rarer than hens teeth, Everyone was out of stock. However chain reaction sent an email the next day, they had four in Stock that day. I grabbed one while they had them, they where all sold by the end of the day…
Dismantled the drive chain, full clean and fitted the ring. All good. Bolts snugged down and ready to go.
Bike rides silently again. Back to the pleasures of silent running!
But getting used to a 12-25 cassette again..