carerra vulcan rear cassette

jinnorfolk
jinnorfolk Posts: 21
edited August 2009 in MTB beginners
Bought my son a carrera vulcan and it is going in this weekend for its 6 week check. I had it upside down this week and noticed the cassette doesnt spin true, ie it wobbles a little when the rear wheel is turning. Is this normal or is it something halfords should fix?

Thanks in advance

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