ColinJ
Puzzle game procrastinator!
- Location
- Todmorden - Yorks/Lancs border
I decided that I would make a more determined effort today to quieten down my singlespeed bike. I know that its freehub needs sorting out because that has enough friction in it to drive the cranks round if I unclip when the bike is moving! I had a go at it a few weeks back but the locknut is too tight and I broke my chain whip trying to undo it! I have a new whip now so I will have another go at that soon.
Meanwhile ... there was also another noise problem, which only manifested itself when I was pedalling. Considering how simple the singlespeed transmission is - just one chainring, one sprocket, a chain and a chain tensioner - it was surprisingly noisy. I thought that I had aligned the tensioner's jockey wheel correctly, but I had always adjusted it with the bike the right way up. It looked like it was in line with the chain and the sprocket. Today, however, I turned the bike over to get a closer look at the chain run - it was slightly out so the jockey wheel was deflecting the chain slightly sideways between the sprocket and the chainring. When I adjusted it again I could see how subtle the adjustment needed to be. A couple of mm out either way and the noise was present. With the wheel exactly inline with the chain everything became much quieter. It is almost impossible to get that adjustment right without turning the bike over.
I just nipped out to the shops on the bike and for the first time, pedestrians were not hearing me coming as long as I continued pedalling. (They can when I freewheel, because of that noisy freehub.) It means that I now have a Kamikaze pedestrian problem, but I can alert them with the loud clicking from the freehub by freewheeling.
Meanwhile ... there was also another noise problem, which only manifested itself when I was pedalling. Considering how simple the singlespeed transmission is - just one chainring, one sprocket, a chain and a chain tensioner - it was surprisingly noisy. I thought that I had aligned the tensioner's jockey wheel correctly, but I had always adjusted it with the bike the right way up. It looked like it was in line with the chain and the sprocket. Today, however, I turned the bike over to get a closer look at the chain run - it was slightly out so the jockey wheel was deflecting the chain slightly sideways between the sprocket and the chainring. When I adjusted it again I could see how subtle the adjustment needed to be. A couple of mm out either way and the noise was present. With the wheel exactly inline with the chain everything became much quieter. It is almost impossible to get that adjustment right without turning the bike over.
I just nipped out to the shops on the bike and for the first time, pedestrians were not hearing me coming as long as I continued pedalling. (They can when I freewheel, because of that noisy freehub.) It means that I now have a Kamikaze pedestrian problem, but I can alert them with the loud clicking from the freehub by freewheeling.