Chain Link makes noise

mcflyss Posts: 257
edited February 2009 in Road beginners
Hi ya, im still learning so apologise if i struggle to make sense... But!

When I am on the smallest cogs on the back... when the chain is going around, where the link is on the chain, it makes a noise as it passes through the two very small cogs at the rear. You can also feel this in the pedels. It never used to do this, why would it have started and how can i solve this?

The bike it is on is a Claudbutler Roubiax 2008 model, the chain does not seem to have streeched and has always been lubed and cleaned at regular intervals.

Pls help!