the bike now mounts a pair of schwalbe thunder burt 29x2.1, tl ready, 400gr each, making the final weight 9,2 kg. yet, a bit heavy for what i wanted.
im thinking about some way to shed some weight, im thinking about a new suspension fork sid xx sc (-100gr), Ti pedal spindles (-100gr) , changing to a 1x system (-500gr). But as it could be very expensive, it ll take its time.
By now im breaking some KOM and PRs.
Going 1x will save quite a bit of weight. A new fork is a big investment for only 100g. I'd check into the RaceFace Next SL Cinch cranks first, they might still save decent weight over the older 2x model.
For a smaller investment, Ashima AiRotors are really nice, surprisingly light, and very affordable. They're available under many different names, such as the
Origin 8 Torq-Lite rotor.
Those quick release skewers you have are not light - swap those out for some non-quick release ones and you can save a decent amount of weight. I've got a set of
Control Tech Race SL skewers that are amazing, the pair is lighter than just about any titanium quick release skewer.
Looks like you've already got foam grips, only way to drop weight past that is wrap the bars with a bit of road bar tape. That's getting silly, though.
Speaking of silly, if you're a reasonably lightweight rider, you don't need all six rotor bolts. My wife's been running only three titanium bolts front and rear for several years now. That's truly chasing grams, but if you want to hit 8kg with a 29er with front suspension, that's what you're going to have to do.
Shimano brakes are not the lightest, but they're good enough that they might be worth bending your weight target for.
The EggBeater 11 pedals are freakin' sweet. I don't run them - too heavy - but my wife's been running them for a while. The retail price is a bit ridiculous, but if you look on their page, they have a pedal trade-in program. You send in some old pedals (doesn't matter which) and can get brand new Crank Brothers pedals for a whole bunch less. Prices have gone up since I got her the eggbeater 11s, but it was a WHOLE bunch less than the $450USD retail they were going for at the time.
If you wanna get silly, you can find all-aluminum "race day" cassettes at shops like fairwheelbikes.com and others. Almost guaranteed they won't shift as well as an XTR cassette.
Finally, if you're staying 2x10, the non-Shadow+ XTR derailleur is marginally lighter, but wouldn't work very well in a 1x setup.
