9 or 10 speed cassette help

alexander flint
alexander flint Posts: 20
edited May 2011 in Road beginners
Just got a boardman comp racing bike 2010 and have noticed that on the chain ring it says ten speed. Yet when i looked at the cassette it only has 9 sprokets. Is this normal and does it mean that I can add a sproket.

Im new to all this and am some what confused.

Thanks

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