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  1. #1
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    New question here. Help me lose some weight, Trek 29er, $200 left to spent

    Hello all
    I discovered a new hobby recently - fixing/upgrading my bike. So I'm trying to make my bike as light as possible given a set amount of budget.

    Started with last year's Trek Wahoo 29er (Size: 17.5)

    Frame: Trek Wahoo (Same as Marlin/Mamba/Cobia/X-caliber)
    Fork: Rockshox Recon Silver TK Solo Air
    Handle Bar: (Stock) Bontrager Low Riser 31.8mm
    Stem: (Stock) Bontrager Stem
    F/R Hubs: Shimano XT M756
    F/R Rims: Mavic TN317
    F/R Brakes: Avid BB5
    Tires: Stock Bontrager 29x2.1 tires with tube
    Crankset+BB: Shimano XT M780, (removed large and small chainring for 1x9)
    Pedals: VP flats(VP-69)
    Rear Derailleur: Shimano Alivio 9 Speed
    Rear Cog: Shimano HG-50
    Chain: Shimano HG-53
    Saddle: Serfas Stinger
    Seatpost: Thomson Elite 330mm



    Bike weights 27.8 lbs................



    I got ~$200 left in my bicycle budget for the 2012, and thanks to fail bernanke's qe3 I'm determined to spent it before it goes worthles
    What my missing here? What would be the most effective way for me to spent the two hundred bucks in terms of making my bike lighter?

    Thanks
    (picture coming up tomorrow)

  2. #2
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    You could go carbon on the stem and bars to lose some weight

  3. #3
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    Reputation: Mr. Lynch's Avatar
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    Tubeless! Two 29er tubes weigh atleast 3/4 of an lb.

  4. #4
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    What grips do you have? I just changed mine from lock on grips to KCNC foam

    KCNC EVA Foam Grips : Fairwheel Bikes, Cycling Boutique

    dropping about 90g for $10.

  5. #5
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    I think that your current cassette holds a lot of weight. Not sure on the rear derailleur.

    Tubless is a good idea, convert what you have. No need for new rubber until you wear that set out, then look for lighter.

  6. #6
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    Quote Originally Posted by Mr. Lynch View Post
    Tubeless! Two 29er tubes weigh atleast 3/4 of an lb.
    How much does the little read cup of sealant weigh?

  7. #7
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    Quote Originally Posted by raganwald View Post
    How much does the little read cup of sealant weigh?
    I usually use from 60g to 100g of sealment (Notubes) per 29er wheel. Works fine...

  8. #8
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    your derailer I bet weighs over half a pound, probably 10 oz.
    Your seat could weigh over 1/4 pound more than other seats.
    your pedals, if theyre stock metal flats can way 3oz more per pedal than lighter cage pedals.
    Your seat post, 7-11oz depending on length, not including the (probably steel) microadjust. carbon seatpost can save you half a pound.

  9. #9
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    tires could be a lot lighter. look into some Conti Race Kings.

    stem- you don't need to get something crazy light, but those stock Bonty stems are boat anchors.

    cranks- look into a model with an external BB and hollow spindle instead of square taper.

    fork- this upgrade will cost you a lot more than $200, but keep and eye on a deal.

    tubeless- definitely a good idea, but it might not save you a lot of weight in the end.

  10. #10
    I like rigid MTB.
    Reputation: edle's Avatar
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    Try this 29er carbon fork....

    Try this 29er carbon fork and loss at least 2 pounds + .

    Ebay number: 280916928403

  11. #11
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    Something no one has mentioned yet - upgrading your brakes. If you shop around I suspect you could get a new pair of SLX brakes for about $250. You'll shed a lot of weight versus your BB5s, and it'll be a huge upgrade in performance, reliability, and adjustment (as in, for the most part it won't need any, like the BB5s regularly do to compensate for pad wear). It's really your best upgrade even ignoring weight savings.

    If it was my bike, I'd go tubeless, consider new tires (because I'm a tire junkie), and buy new brakes. In that order.

  12. #12
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    rigid fork

  13. #13
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    Quote Originally Posted by lazarus2405 View Post
    Something no one has mentioned yet - upgrading your brakes. If you shop around I suspect you could get a new pair of SLX brakes for about $250. You'll shed a lot of weight versus your BB5s, and it'll be a huge upgrade in performance, reliability, and adjustment (as in, for the most part it won't need any, like the BB5s regularly do to compensate for pad wear). It's really your best upgrade even ignoring weight savings.

    If it was my bike, I'd go tubeless, consider new tires (because I'm a tire junkie), and buy new brakes. In that order.
    You can get new xt brakes on ebay for about 250 for front and back. Here is an example (220 + 30 shipping)

    Shimano XT Hydraulic Disc Brake Set Left Front Right Rear Set Silver MTB New | eBay

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