Replacing or upgrading cassette

portland_bill
portland_bill Posts: 287
edited September 2012 in MTB buying advice
My bike has a Shimano HG50-9 on it. Would I honestly notice any major difference if I upgraded it to an HG80-9 or XT cassette or should I just go for the cheap option and replace my worn cassette for £16 compared to £35 or £42?

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