that bike really isnt the kind you get concerned about losing weight. Its got nice wheels, i would keep them until the get really messed up or something. Maybe start out with handlebars and stem that suits your fancy, then drivetrain.
If your worried about weight the Flite might not be for you. For the cost of the Flite+800 dollars you can get a bad ass carbon Sette XC Bike, but I dont know what kind of riding your doing. So what kind of riding are you doing?
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