has anyone started a topic of what parts would be used

in order to build a lightest hard tail 29'er bike in theory ?

example. the wheels set would consist of ...?

tires would be ...?

front shocks with a lock out

this would be for a 150 lbs. rider on a 15-16 inch frame

and be for racing

6.8kg

Frame: Open @ 850gm
Fork: Lefty @ 1252+80g = 1332g
Headset: Around 70g
Stem: AX zeus @ 80g
Handlebars: AX Hera @ 65g
Grips: Titec pluto or something @ 12g
Brakes: Formula r1r with Innolite disks @ 465g total
Shifters: Sec @ 94g
Front derailleur: Sram red + carbon clamp @ 65g or so
Rear derailleur: Shimano XTR with carbon pulleys @ 160g
Cables : Powercordz prime @ 30g
Cassette: Recon alu 11-32 @ 135g
Chain: Yaban titanium @ around 220g
Seatpost + saddle combo: Berk @ 140g
Seatpostclamp: MCFK @ 5g
Crankset: THM Clavicula + bearings + some light rings @ around 470g
QR rear: Tune bolt-on @ 15g
Wheels: Extralite hubs, cx-ray spokes, DUKE clincher rim @ around 1170g
Tubes: Notubes tape + alu valve @ 15g
Tires: Maxxlite 345 @ 690g total
Latex @ around 60g
Pedals: Eggbeaters @ 170g

Sub 6.2 kg with suspension fork. Go rigid and drop 7-800g

My experience from a very WW mtb build: I'm strongly concidering parting out my bike and buying a basic factory bike and maybe upgrade the wheels... Stronger, more reliable and stiffer.

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WTB: MTB hubs, 29'er carbon rims

My 7.3kg/6.4 kg 29'er project buildthread!
My Bianchi Oltre XR

i don't think i will pick the lefty fork.

i will stay with conventional design front shox.

Why?

I don't think you will do any of this......

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i don't want to start my shopping list after my funding arrives.
so i am starting my shopping list early.

i tried the lefty fork bikes during demo days. it is not for me

i am also going to use crampon pedals

...

you don't want to use what is pretty much the best XC fork around and you do want to use flat pedals?

do i have to change the title to
"suggest some light parts you would use "
to build a light race 29'er ?

A couple of questions out of curiocity:

- You say that the Lefty is "not for you", - what is it about the Lefty you do not like?

- Why would you choose flats for a XC race bike?

Martin F: 80g steerer, 80g stem and 65g handlebar. My combo is lighter then, with a Poseidon handlebar at 600mm. so could be even lighter with a slimmer Hera.

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/jonas l
http://cerrol.wordpress.com (my cyclingblog)

I lol'd @ flat pedals. I can understand wanting to use a conventional fork, but flat pedals on a race bike would be pretty silly.

if the lefty was the best fork it would be the only fork available on the market.

i have looked at it many times before i tried it.
and i like the non-standard way it looks
but it just is not for me.
most of the time, i ride the bike i use now with the fork locked out
i will take a photo of the pedals i am using now and post it.
when i get time.

Biggest load of crap I have ever heard!
Let's just say the Lefty is the best XC fork available (don't want to argue the point, just let's agree for the argument), with you logic all other manufactures would just get out of the XC fork market. Not strive to produce a better fork and take the number 1 place. Also, even if the Lefty is better than others, it is also more expensive than many and (I believe) requires more maintenance than many. Not everyone can afford to have the best nor need the best.
This would apply to any product in the market place.
BTW most money is made in the high volume low to mid range products. Top of the line products are only really there as Halo products to attract people to the brand and have something to aspire too, but that the masses will never have any real hope of owning.