hello
Stphane----Stef
i live in France(Normandie)
my bike is Btwin RockRider 560(26") i bought in 2015.
https://www.decathlon.fr/vtt-rockrider-560-id_8293151.htmlAfter calculation and some research, I can mount a MTB of less than 10kg (9.3 according to my calculations) for 1800-2000 €.
SRAM Group eagle gx 12
Xt brakes
Fork rockshox sid (to see what I find according to promo or other)
Wheels: either Chinese carbon or aluminum brands.
So components not too bad, without reaching the high end to stay on a price correct.
Or a mountain bike made of brand cube, canyon, orbea etc ... 1500-1700 €
With components lower and to evolve later (especially the wheels and the fork).
I have a doubt about the Chinese wheels we find, they seem heavy for carbon wheels (about 1700-1800gr).
at this weight as well take aluminum wheels that are worth less expensive.
I read tests on the internet (vojo magazine) and tested carbon wheels are 1200-1400gr,but prices ......... 1700-2600€
http://www.vojomag.com/test-roues-carbone-vtt-29-pouces-asterion-duke-enve-kappius-notubes-specialized-roval/