Don't race to be the biggest knowitall.
[MENTION=412721]Vintage Raleigh[/MENTION] the nicer cassettes and chains have a chrome finish. Match the number of teeth on the big cog. Consider what Alex said about checking the chain ring.
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Genesis 49:16-17
"Well, well!" said Holmes, impatiently. "A good cyclist does not need a high road. The moor is intersected with paths and the moon is at the full."