is it worth going for carbon handle bars

hi im 15 and i have a trek ex 9.9 06 and my dad has a brand new scott spark 60 and he want to lighten his bike. he weighed my handle bars and seat post and the his own .he found my caron ones were 450 g lighter than scotts own componets.
is there any chep light carbon or super light alu out there
is there any chep light carbon or super light alu out there
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Here's a list of bars and weights.
There's a cost per gram ratio when ligtening your bike - some are grams are cheaper, some more costly. Wheels, tyres, saddle, seatpost, chain, cassette - have low can you afford to go?