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  1. #1
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    Where can I save some weight?

    I don't know how much each component on my current HT weighs, but here's what I currently have:

    Specialized Stumpjumper Carbon Comp 29'er frame
    Fox 15mm TA FIT RLC 100mm
    Niner Carbon handlebars
    Niner Carbon Seatpost
    X9 rear shifter (1x10)
    X9 rear derailleur
    MRP bling ring
    e.thirteen chain guide
    Avid Elixir CR brakes/rotors
    Shimano XT pedals
    Selle Italia saddle
    Sun Ringle Black Flag Pro wheels
    S-Works Renegade tires (tubeless)

    I believe the last time it was weighed, it came in at approximately 24 pounds.

    Where can I shave off some weight?

    I thought about Carbon Roval wheels, but they're not that much lighter than the Black Flag Pro's. So, maybe upgrading to XTR groupset would lighten it up? Would that do it? I'm looking for at least 1 pound lighter.

    I don't know how people get even close to 20 pounds...

  2. #2
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    What stem do you have? You can drop some grams there.
    Grips? Maybe throw some light foam grips on. Some grips are 150g, foam can be around 10-15g.
    Titanium skewers
    These are all pretty dang cheap compared to many other parts, but can shave weight easily.
    Also 23-24 lbs for a 29er isnt too bad.

  3. #3
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    The stem is a Specialized PRO CLP (176g)
    Grips are PRO Tharsis (120g)

    Its definitely light for a 29'er, but I'm hearing about 20lbs 29'ers and I'm wondering where I can skim the fat. I'm already 1x10 so maybe replacing the components to XTR would save me at least 1 pound.

  4. #4
    Rod
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    Upgrading to XTR would be very expensive. You can get it much lighter without xtr. I'm not sure the weight on some of your components, but I have mine at 21.5 in my race setup without any xtr. I would recommend weighing everything and then go from there. Look at every individual part. That's what I did.
    There is not much choice between rotten apples.

  5. #5
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    Quote Originally Posted by VanillaEps View Post
    The stem is a Specialized PRO CLP (176g)
    Grips are PRO Tharsis (120g)

    Its definitely light for a 29'er, but I'm hearing about 20lbs 29'ers and I'm wondering where I can skim the fat. I'm already 1x10 so maybe replacing the components to XTR would save me at least 1 pound.
    You could easily save 50-75 g on the stem.
    Weight Weenies - Stems

    Save 100 more g with foam grips.
    Weight Weenies - Grips & Tape

    Yeah, that only .4lbs but its cheap.

    You can also check into cassettes (they can be very heavy)

  6. #6
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    XT pedals may be very good, but are not light, compared to say Ti Eggbeaters.
    Also shoes?

    Cassette?

  7. #7
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    The cassette is the whatever comes with the X9 groupset. Don't have the exact name.

    I just got finished reading a thread on a Carbon SJ build that was completed for about 20 pounds. It's a size S frame, but the difference between that and a M frame can't be 2 pounds, can it?

    So frustrating....

  8. #8
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    Wolf Tooth chainring could let you drop some weight by getting rid of the chain guide. It's probably lighter than the mrp one too.

  9. #9
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    Where can I save some weight?

    I just weighed the bike using the method of getting on a scale by holding the bike and subtracting that weight from my scale weight and I got 22 lbs.

    So maybe I don't need to do much....


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  10. #10
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    Where can I save some weight?

    Regardless, I could still save some weight in some areas.

    The saddle weighs almost 300 grams. I could lose 200 grams by going with an SLR. I could also shave some weight by upgrading the rear derailleur, cassette, and shifter to XTR.


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  11. #11
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    Even on my 13.9lb. 29er every single component can be lighter with the exception of the rims. When people ask me how I got it so light I always say, Money!

    You've got a great bike there it just all depends on how much MORE money you are willing to spend. I'm building a Sub 17lb. full suspension, geared 29er but it's going to end up costing a hair under $20,000
    I got some pretty decent Niners!

  12. #12
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    Quote Originally Posted by mattkock View Post
    Even on my 13.9lb. 29er every single component can be lighter with the exception of the rims. When people ask me how I got it so light I always say, Money!

    You've got a great bike there it just all depends on how much MORE money you are willing to spend. I'm building a Sub 17lb. full suspension, geared 29er but it's going to end up costing a hair under $20,000
    Wow. Fun build. Enjoy it and post it!

  13. #13
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    In doing a quick analysis, I can do this a little at a time.

    If I perform the upgrades in terms of weight savings, it would be:
    • Switching saddle to SLR 165g
    • Upgrading cassette to XTR 104g
    • Upgrading rear derailleur to XTR 36g
    • Upgrading pedals to XTR 33g
    • Upgrading shift levers to XTR 13g


    I'll most likely perform the pedals and saddle first. Then move to the drive train before the end of the summer.

  14. #14
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    How about just getting the Sram XG1099 cassette instead? It's ~50g lighter than the 10 speed XTR cassette. I don't think changing the RD and shifters are worth the weight savings in this case, spend the extra cash on the XG1099.

  15. #15
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    Where can I save some weight?

    Quote Originally Posted by HiddenStar View Post
    How about just getting the Sram XG1099 cassette instead? It's ~50g lighter than the 10 speed XTR cassette. I don't think changing the RD and shifters are worth the weight savings in this case, spend the extra cash on the XG1099.
    What about the XG1090, that seems to be lighter?


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  16. #16
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    Thanks for all the insight guys! I had no idea that my current cassette weighed so much. With that and the saddle change, I should drop under 22 pounds. I'd be happy with that considering it doesn't involve a frame change (S-Works or Niner A9C RDO).

  17. #17
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    Yes, XG1090 is lighter but that is a Sram Red (Road group) cassette, so the largest cog you'll get is 28T and I'm guessing you'll want at least a 32T?

  18. #18
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    Quote Originally Posted by HiddenStar View Post
    Yes, XG1090 is lighter but that is a Sram Red (Road group) cassette, so the largest cog you'll get is 28T and I'm guessing you'll want at least a 32T?
    HA! That would have been a sight to see...a MTB with a Road cassette.

  19. #19
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    Quote Originally Posted by VanillaEps View Post
    HA! That would have been a sight to see...a MTB with a Road cassette.
    Weight weenies do it all the time. To me, mechanical advantage of gearing is worth a few extra grams.

  20. #20
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    Quote Originally Posted by moefosho View Post
    Weight weenies do it all the time. To me, mechanical advantage of gearing is worth a few extra grams.
    I agree. I need those bigger cogs.

  21. #21
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    Quote Originally Posted by VanillaEps View Post
    In doing a quick analysis, I can do this a little at a time.

    If I perform the upgrades in terms of weight savings, it would be:
    • Switching saddle to SLR 165g
    • Upgrading cassette to XTR 104g
    • Upgrading rear derailleur to XTR 36g
    • Upgrading pedals to XTR 33g
    • Upgrading shift levers to XTR 13g


    I'll most likely perform the pedals and saddle first. Then move to the drive train before the end of the summer.
    I picked up a used slr carbonio on ebay for $50 it weighed 108g.

  22. #22
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    Quote Originally Posted by moefosho View Post
    I picked up a used slr carbonio on ebay for $50 it weighed 108g.
    Was that the flow?

  23. #23
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    Not the flow. Just the kit version. I think the claimed weight was 115g or something.

  24. #24
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    Alright, I put the order in for the saddle, cassette, and pedals at my LBS. I'll be dropping off the bike tonight and with a full schedule this weekend, I probably won't see it until late Sunday afternoon.

  25. #25
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    Quick update:

    Performed an official weigh in at the LBS last night. The bike came in at 22.4 pounds. A lot less than I remembered, or thought I remembered, it weighed when I swapped frames.

    So, the cassette and pedals are going on today and should drop the bike to a hair under 22 pounds - to be exact - 21.9 pounds. I kept the saddle because I really do love the saddle and being under 22 pounds is good for me.

    Thanks for all the help! I really didn't know where to start when I started this thread and everyone that responded helped me approach it in a sane and organized way. Next time I feel the need to drop some grams here or there, I know how to go about it.

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