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  1. #1
    I'm gonna have to kill ya
    Reputation: roybatty666's Avatar
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    New question here. How to get my A9C sub 15 lbs?

    Fallen back into weight weenism more than ever and gone a bit mad

    I built a 23.5 lb On 29er One Scandal then replaced the frame to a Niner Air 9 Carbon and it has gone silly since then.

    I have got down to 7510g / 15.5 lbs and have ordered some more bits that should seem me to 6906g / 15.19 lbs which is so close to a high 14lb steed it would be rude not to

    Current build

    Frame Niner A9C
    Fork Niner RDO
    Headset FSA
    Stem KCNC Wing 60mm
    Bar Mt Zoom
    Grips ESI
    Brakes Formula RX
    Rotors Air rotors
    Front QR Tune 15mm
    Rear QR Tune
    Seat Clamp Tune
    Seat post KCNC Scandium Ti pro
    Seat Charge Spoon
    Chain SRAM 870
    BB Hope Stainless Steel
    Cranks SRAM X0
    Chain ring Absolute Black 32t
    Rear cog Chris King 18t
    Front Hub Tune King
    Rear Hub Tune Singlespeed
    Spokes DT Rev
    Nipples DT Ali
    Tyres Schwalbe Rocket Ron Snakeskins
    Pedals Eggbeater Ti1 with ti axle upgrade.

    Parts just bought
    Chain KMC x9sl -42g
    Ti calliper and rotor bolts -30g
    Bar end plugs plastic ones -34g
    Tyres RoRo non snakeskin -170g
    Saddle McFk -132g
    Post McFK - 66g
    Brakes Formula R1 Race -130g

    So other than starting to replace really pricey bits (as if the 210 seatpost wasn't steep enough) I think I might be a bit stuck. Not sure how much lighter 4ti pedals will be over mine with the replacement axles (again a proper lump of cash for minimal weight loss)

    Loving the bike though and all the weight loss, since losing the Reba fork and over a pound on wheels and tyres I have smashed all my PB times on my local routes by massive amounts. I have noticed the bike feels really light under me and takes little input to mover about which at first caught me put a few times but just feels normal now I am used to it.

    Any thoughts?

    Some bike porn
    How to get my A9C sub 15 lbs?-20130722_190451.jpg
    How to get my A9C sub 15 lbs?-20130722_190546.jpg
    How to get my A9C sub 15 lbs?-20130722_190512.jpg
    How to get my A9C sub 15 lbs?-20130703_181359.jpg

  2. #2
    www.4estbiker.nl
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    Take the new Schwalbe Thunder Burt tires when they are available.
    410gr for the 29*2.1" model.
    Are you running tubeless?
    My bike is never the problem and can always be faster than I can...
    http://www.4estbikers.nl

  3. #3
    mtbr member
    Reputation: phlegm's Avatar
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    Are you sure about the weight on the KMC chain? Even with the fewer links for your SS setup, 42g seems crazy low. (?)

  4. #4
    Dropshot Champ!
    Reputation: redmr2_man's Avatar
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    -42g from his current chain weight. Not 42g total weight for the whole new chain.

    Thats how I took it anyways

  5. #5
    I'm gonna have to kill ya
    Reputation: roybatty666's Avatar
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    Quote Originally Posted by redmr2_man View Post
    -42g from his current chain weight. Not 42g total weight for the whole new chain.

    Thats how I took it anyways
    lol yeah that was the loss over the existing part

    Yeah running tubeless and in the normally muddy UK I need good grip,was running NN but RoRo are just about good enough being rigid I need a bit of size so schwalbes idea of a 2.1 is a bit skinny based on past experience.

    I really think it is a case of finding 10g here and there, I could drop the ring to a 28 and the rear to a 15 and lose 2-3 links and about 12-15g when I decide to up my ratio a bit, esi race grams save 10ge over the normal ones etc etc

  6. #6
    mtbr member
    Reputation: moefosho's Avatar
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    Take off your brakes and make it a fixie

  7. #7
    I'm gonna have to kill ya
    Reputation: roybatty666's Avatar
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    Quote Originally Posted by moefosho View Post
    Take off your brakes and make it a fixie
    Coming back from Mountain Unicycling to MTB'ing I found the lack of pedal back pressure very weird and was thinking of going fixed but one of the reasons for going back to two wheels was missing the speed of a down hill run, I never coast on the flat though as I am so used to constantly pedalling.


  8. #8
    6x7=Dont Panic!
    Reputation: TheRedMantra's Avatar
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    Um... Saevid saddle or something along that line would save 150g.
    Herro prease

  9. #9
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    Get foam grips instead? That would save about 35g at a minimal cost assuming you're using the ESI racer's edge.

  10. #10
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    I got these foam grips - I like them and they are cheap enough to replace any time you want.... 15g without caps, about 22g with caps...

    Gobike88 KCNC Eva Foam Grip for MTB Handlebar Black C88 | eBay
    Best racing series in the West!
    http://www.bicyclingevents.com
    Helmet cam reviews
    http://www.helmetcamreview.com

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