this is a new bike? or a used bike? perhaps a bit more information on what brand and model of bike this is. is there a website we can link to? was it a craigslist/ebay purchase
if you bought the bike new and it have not arrived and you want to 'upgrade' it already you should have gotten a nicer bike in the first place.
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“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk