i need help here for XC training and racing bike. Anything to make it more light... Please help me!!

I have this following items
DriveTrain
crank(square taper Deore Hollowtech 170mm)446g + (Sugino Titanium 113mm)130g

cassette=duraace-11t-21t

chainring=44t deore chainring ?g 32t LX chainring 39g + aluminium bolts

rear d=Modified Duraace short cage(titanium pivot+bolts)193g

Front d=Modified Deore 123g

Left Shifter=XTR 110g/Right Shifter=SRAM Rocket Grip shift 9 speed 100g

Hubs American Classic Disc=F/138g R/250g/skewers=amoeba titanium
80g

Rims=mavic 517=800g

Brakes=tektro 162g with brake pads + noodle + rubber + Altek lever 70g
front=1 modify rotor XT + bolts (145g) xtr front caliper + xt lever

Contact points

saddle=SLR 135g

aluminium rigid Fork=no brand 610g (without brake pivot)

seatpost=U.S.E alium 187g

stem=Uno kalloy UltraLite 115g(short stem)

handlebar=ec90

frame=Giant XTC team 03


Left with pedals ? im not sure which clipless pedal is the best in lightweight and mud clearance.

Any 1.5 tires to recommend for training? a heavy last longer type

i also need 1.95 lightweight offroad tires for racing? not sure about best performance ones

I really like weight-weenies website and im really addicted to it. Its a very great site that is very important to me Thanks to Admin Florian and everyone in this site.

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Crashman like crashing, feel the rythem and ride.

Lighter saddle: AX-Lightness, or (but very expensive) a fixed saddle/seatpost combination from AX-Lightness. -150g or even more

cranks: Storck Carbon, Extralite E-Bones (need ISIS bb then) -150g/-90g

Skewers: Tune Ac 16/17 -27g

Stem: Syntace F99 -20g (short version)

Frame: Schmolke Titan (several versions, down to 1150g/frame) -300g

Bar: Schmolke Carbon (custom-made) -30g

Seatpost: Schmolke (custom-made) -50g (depends on length/rider weight)

All these parts are very expensive and don't save very much weight, but your bike allready is very light, so it's hard to save even more weight...

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Ti.Eggbeaters work great and are light.Conti.1.5 Cross Country tires are nice.
Are the Schmolke Carbon bars safe?Thay seem crazy light to me.Anyone tried the new RaceFace Next carbon bars?

How about titanium keywin mudman? does it have better mud clearance than time atac pedals or egg beaters? i like the platform type.BTW, Im using time atac alium. its good and keep me going on muddy trails, hills but its kinda heavy 4 the weight.

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Crashman like crashing, feel the rythem and ride.