Mystery twang

[Andrew_Culture]

It doesn't seem to cause follow on problems, both my chain and my rear sprocket seem to be in fine fettle although they are probably both a tad more heavy duty than yours. Other then checking it when you clean and oil it I shouldn't be too worried. famous last words I know. When you swap your front ring it may well stop as a new one will hold it a lot straighter.

The front crank is kinda buckled

 

[Andrew_Culture]

Right, I've been out for a quick thrash and gave it some beans (in my own little way) and greasing the seatpost didn't make a snot of difference.

I can confirm that the noise is more of a clatter than a twang really, and it definitely happens when I hit a bump in the road and not when I put the drivetrain under stress.

 

[Andrew_Culture]

No apparently cracks in the frame, which is a cheap Claud Butler frame that appears to be built from the same material as poo poo houses, which for some reason have a reputation for being tough.

 

[deptfordmarmoset]

This twang, are you sure it's not just a Suffolk accent?

 

[Andrew_Culture]

This twang, are you sure it's not just a Suffolk accent?

Oi hint gut a clew

 

[Minotier]

Are the welds okay around the rear wheel drop outs? If you put a spanner onto the drop out and see if there is any movement. I had a broken weld on one a few years back. Clunk,twang it went, it was on the opposite side to the sprocket.

Also I might sound a bit picky, but can we please refer to sprockets as sprockets and not COGS please. It is a word that just grinds away at me.
Cogs are ancient boats or wooden staves knocked into a cartwheel to drive windmills.
Please for the sake of my blood pressure.

 

[Andrew_Culture]

Also I might sound a bit picky, but can we please refer to sprockets as sprockets and not COGS please. It is a word that just grinds away at me.
Cogs are ancient boats or wooden staves knocked into a cartwheel to drive windmills.
Please for the sake of my blood pressure.

I had been wondering what the correct terminology is

 

[thegravestoneman]

isn't sprocket the other fellow out of Miami Vice?

 

[Pat "5mph"]

Cogs are ancient boats or wooden staves knocked into a cartwheel to drive windmills.

My English is improving leaps on reading about bikes (goes to google "staves")

 

[Old Plodder]

Take a look at your rear mech (derailleur), the chain appears to be going straight from the bottom cog to the drive sprocket.

It should run around another wheel, either the chain isn't on properly, or you've broken it & will need a replacement.

 

[Andrew_Culture]

Take a look at your rear mech (derailleur), the chain appears to be going straight from the bottom cog to the drive sprocket.

It should run around another wheel, either the chain isn't on properly, or you've broken it & will need a replacement.

I think we set it up that way so more of the chain wrapped around the rear sprocket, we did try a more traditional chain tensioner but it slipped too much.

 

[Andrew_Culture]

I removed the pump I had fixed to the frame to see if that would stop the clatter but it made no difference.

But... the clatter appears to have gone away, I don't know if this is good or bad!

 

[4F]

I removed the pump I had fixed to the frame to see if that would stop the clatter but it made no difference.

But... the clatter appears to have gone away, I don't know if this is good or bad!

My money is on it being your knee's

 

[Old Plodder]

My money is on it being your knee's

Well if it wasn't for a brief appearance of 'the yellow thing in the sky', I could have suggested it was his teeth rattling.

 

[Old Plodder]

I think we set it up that way so more of the chain wrapped around the rear sprocket, we did try a more traditional chain tensioner but it slipped too much.

View attachment 18329

Still looks wrong where the middle wheel is/should be, have you checked the fixing at that point?
(You may be about to lose it.)