Tom B
Guru
- Location
- Lancashire
This has happened on my commuter a couple of times in the last couple of days...
It always seems to happen at speed when picking up pedaling from free wheeling. The chain over shifts off the big chainring and does this. The only way to get the loops out is to work them together with much getting oil everywhere and finger pinching.The road was pretty rough, but not excessive.
There does seem a bit of a lack of chain tension, but there always has been on this bike and the chain does rattle and slap around. The front deraileur is adjusted to the point that it does shift up nicely but just to the point it doesn't rub when in the smallest rear sprocket.
After the first couple of times it did it I gave the chain a clean and lube as i find most of my shifting problems are due to lubrication.
I suspect that the chain is stretched to the point of needing replacement (my measuring tool is at work so haven't measured) it won't be excessive, i've certainly used chains with more wear.
The chain looks embarrassingly dirty but in my defence i cleaned it yesterday and at the point of photo it had done 35miles on damp leafy dirty roads. I think the wet lube look doesnt help - its black when it goes on.
It always seems to happen at speed when picking up pedaling from free wheeling. The chain over shifts off the big chainring and does this. The only way to get the loops out is to work them together with much getting oil everywhere and finger pinching.The road was pretty rough, but not excessive.
There does seem a bit of a lack of chain tension, but there always has been on this bike and the chain does rattle and slap around. The front deraileur is adjusted to the point that it does shift up nicely but just to the point it doesn't rub when in the smallest rear sprocket.
After the first couple of times it did it I gave the chain a clean and lube as i find most of my shifting problems are due to lubrication.
I suspect that the chain is stretched to the point of needing replacement (my measuring tool is at work so haven't measured) it won't be excessive, i've certainly used chains with more wear.
The chain looks embarrassingly dirty but in my defence i cleaned it yesterday and at the point of photo it had done 35miles on damp leafy dirty roads. I think the wet lube look doesnt help - its black when it goes on.
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