Chains + Gears

[Grimm]

Hi, I'm upgrading my bike and have started with the chain/gear area.

How would i detrmine what size bits would be fit my bike? It's a road bike
(Picture here: http://www.cyclechat.co.uk/forums/showthread.php?t=22743)

There's lots of bits to do but I've decided to start at the drive and work from there forth. As well as painting everything

Thanks

 

[mickle]

Hi Vincent and welcome. It's not a actually road bike it's a mountain bike with road tyres. If you turn it around for your next picture and zoom in on the transmission we can get a better idea of what parts you need.

And I rather like the orange!