You should be able to get components at most decent bike shops.
Mango bikes?? Here's the only link I found. I'm guessing you didn't get it at a bike shop.
http://www.bikesdirect.com/cruiser_bikes.htm
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The Lord is merciful and gracious, slow to anger and abounding in steadfast love. - Psalm 103:8
I am a cyclist. I am not the fastest or the fittest. But I will get to where I'm going with a smile on my face.