Shaun McDonald's Blog » 2008 » January » 06

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Cycling: New chain and chain rings

I’ve finally got around to replacing my worn chain and chain rings/cogs on my bicycle. I have gone for 2 extra teeth on the front and one less on the back. This means I’ll be getting a few extra turns of the wheel for each turn of the pedals.

Before putting the new chain on, I compared the two, and the old one had stretched by nearly 2 links over the whole length. No wonder the teeth were wearing away so much, and making so much noise when pedalling.

On my test ride this afternoon, I noticed it was running a lot smoother. Though it does appear that the hub requires to be pulled apart again to be fully re-greased, though I’m maybe thinking that it will need to be replaced due to the wear.

There are a couple of photos of the old cogs below. Take a look at how worn they are.

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