Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Disappointing!!!!

The bike is cute, that's the only positive. The bike is HEAVY. I understood it wasn't an aluminum frame, but this is so heavy it may have been constructed with solid steel. The heft I could get around but the bike is so hard to pedal that I'm considering buying my son a different bike and giving this one away. If only I still had the packaging this bike would be returned.