Hi all. My very short question. I'm going to obtain this frame (size 46). Weight 1090 g. Does this weight enough for building light bike?

yes it does.

my frame weights rougly 1300g and built into a 8,9kg bike with durable components...

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2013 rocky mountain vertex 29er
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Thank you for reply. Bottecchia is the most unknown here among other super-unknown brands but I like the style of this frame. Hope to create something light and stylish.

whats the part list you have in mind?

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2013 rocky mountain vertex 29er
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www.cyclingtrainingnuts.blogspot.ca

So I'll take this bike in stock configuration with:

Groupset XT 2012 (but I dream about SRAM X0 or even XX),

Fork Reba RL 100 mm

Wheels DT Swiss 1900 (will be replaced with Crossmax SKR 2012),

Ritchie WCS stem, seatpost and handlebar (alu) will be fine for me but later in will be changed for carbon also from Ritchie.

Seat will be replaced with Sella San Marco Magma MG C - very comfortable and too much rare seat (143 g) I'm not able to find another one for me.

It will be nice to install Crank Brothers Egg beater 4 with Ti axe but I'm not sure that it will be good idea to go to Nepal with such pedals. XTR 980 trail will be more tough (i think) and suitable for this conditions.

Till now I have 3-4 weeks until it arrives to Russia. As soon as I'll get in upgrade period will be started