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  1. #1
    fc
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    27.5+ Stumpjumper 6Fattie

    First Look: Specialized Stumpjumper and Rhyme FSR 6Fattie - Mtbr.com

    "We got to ride some Stumpjumper 6Fattie prototypes and we even got to do back to back loops with a 29er specíd with identical components.The first impression is uphill speed is about the same. Itís really hardly noticeable as lab measurements at peak climbing power (250-300watts) identify the power loss with the big tires to about 7 watts. Climbing very smooth terrain, the power loss might be more significant. But when climbing very rocky/rooty terrain, the 6Fattie will climb more efficiently since it will have more traction and bump absorbing characteristics.

    Descending, there is more traction. Even with these puny knobbed Ground Control tires, traction was available in spades and it was hard to explore the limits and break the tires free. The dilemma here is it is more difficult to receive feedback from this tire with vibrations muted by low tire pressures. So the rider has to retrain and relearn a bit to actually find the limits of these 3.0 tires. But the upside seems much higher and better downhill speeds can be achieved by these setups.

    Our other observation riding these bikes is there is much less vibration and chatter on the hands and arms. There is much less hand fatigue and arm pump. On longer descents like the Downieville Shuttle Run or the Top of The World Trail in Whistler, BC, this can be a distinct advantage."

    http://reviews.mtbr.com/first-look-specialized-stumpjumper-and-rhyme-fsr-6fattie
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    IPA will save America

  2. #2
    Trips for Kids Denver
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    On a side note I rode my converted Rumblefish with a 2.8 rear, 3.0 front on a night ride and it was super forgiving which upped the fun factor big time.

  3. #3
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    100% positive I have to own this bike

  4. #4
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    Id like to test ride one of those. Demo days is coming to my area soon, hopefully one is available. The only thing I cant get over is that big gaping hole in the frame for stuffing tools. I never did like water bottle cages and always wear a pack.

  5. #5
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    I attended their demo in Santa Cruz today. Unfortunately no Plus versions were offered for demo. Perhaps by the July release date. I suspect they haven't nailed down the rim width offerings. Their hardtail Fuze models run a wide WTB hoop.

  6. #6
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    I don't see a power meter on that bike. Your data sounds pretty close but hard to trust with no meter. Any data available? Speed/watts/elevation/HR?
    Pretty good at everything, but not really good at anything!

  7. #7
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    Hey does anyone know if you can also use 29er wheels on this bike?
    2013 Transition TransAM
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  8. #8
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    Looks like it wont, different hub spacing.
    2013 Transition TransAM
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    2016 Specialized Stumpjumper Carbon Comp

  9. #9
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    I read somewhere that the Stumpy 6Fattie will have standard-width 29mm rims instead of the WTB 45mm or even the Roval 38mm width wheels found on the Fuse

    someone please tell me this is crazy talk
    a day on a bike is a good day

    - 2012 Salsa Fargo 3
    - 2014 Spec Stumpjumper FSR Comp
    - 2015 Spec Roubaix Comp Carbon Disc

  10. #10
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    I think that just happened to be what they had. The details aren't as solid as the other Stumpys at this time (hence why it's not on the Spesh site yet).

    I would be very surprised if it didn't at least match the Fuze/Ruze widths considering the intended purpose. It might be they are just locking down the supply before stating what it will get.

  11. #11
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    if they have the wider rims, I will buy one. It's that simple. I rode the Fuse last weekend at Duthie Park out here in Western Washington and the thing was an absolute blast. I can only imagine how much stupid fun it would be with full squish
    a day on a bike is a good day

    - 2012 Salsa Fargo 3
    - 2014 Spec Stumpjumper FSR Comp
    - 2015 Spec Roubaix Comp Carbon Disc

  12. #12
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    I got word a bike is shipping for me and should be in my grubby little hands in a week or so. SJ FSR Comp Fattie.

  13. #13
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    My 2016 Stumpjumper with wtb scraper rims 27.5+ Stumpjumper 6Fattie-20150730_180153.jpg27.5+ Stumpjumper 6Fattie-20150730_180208.jpg27.5+ Stumpjumper 6Fattie-20150730_180145.jpg27.5+ Stumpjumper 6Fattie-20150730_180131.jpg27.5+ Stumpjumper 6Fattie-20150730_180036.jpg
    2013 Transition TransAM
    2013 Specialized Camber Comp (Sold)
    2016 Specialized Stumpjumper Carbon Comp

  14. #14
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    Bike looks nice. It will be interesting to see if you see stay-rub on the rear when you wash it after some hard riding. Especially chain stays.

  15. #15
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    I love the fat tires, but from checking the specs, these things are generally bigger, longer, and heavier than a 29er. The wheelbase is longer than a 29er, and the front triangle is halfway between 650 and 29. The chainstays are the same as a 29er.

    Sounds like I will be just putting the widest tires I can fit on a 26 or 27.5 .

  16. #16
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    27.5+ Stumpjumper 6Fattie-imageuploadedbytapatalk1438519762.550759.jpg Shop in Utah has inventory of 6Fatties!!!

  17. #17
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    How do you like it?
    The LPG

  18. #18
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    Quote Originally Posted by lancelot View Post
    How do you like it?
    I should have mine late this week. I'll post up some pics and write up a review over the weekend. I'm riding a 2014 Epic Expert WC right now. Should be quite a contrast.

  19. #19
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    Spent 2 1/2 hours on a SW SJ Fattie recently, pretty awesome. Although I felt that the front end was a little wobbly, Fox 34, a 36 would have been better. One draw back was that my legs hit the seat stay when pedaling. This bike was spec'd with a 38mm external width Roval carbon wheel, new rim from Specialized. Overall, this style of bike is going to again revolutionize the sport. Opens up all kinds of new terrain and lines. Also, I rode with several people with very little MTB experience and they all said the bike instilled confidence and allowed them to relax a little more. Fattie tires equals fattie smiles......oh, man that's cheesy......sorry.....

  20. #20
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    Quote Originally Posted by Silent_G View Post
    Spent 2 1/2 hours on a SW SJ Fattie recently, pretty awesome. Although I felt that the front end was a little wobbly, Fox 34, a 36 would have been better. One draw back was that my legs hit the seat stay when pedaling. This bike was spec'd with a 38mm external width Roval carbon wheel, new rim from Specialized.

    whoa, whoa....so the SJ Fattie *is* coming with a worthwhile rim width? Which build was it? I just checked the website and every SJ 6Fattie had the 29mm Rovals
    a day on a bike is a good day

    - 2012 Salsa Fargo 3
    - 2014 Spec Stumpjumper FSR Comp
    - 2015 Spec Roubaix Comp Carbon Disc

  21. #21
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    Sometimes Specialized lists the internal width and not the external width for some reason. Confusing to consumers. Check the link below. These measure around 35mm external.

    Specialized Bicycle Components
    The LPG

  22. #22
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    If they are 38mm ext diameter, those would be the same as the new Fuse is running right? The website still shows all of the sj with the regular 30mm ID rims. That's great news if the fattie is getting the new wheels too, can't wait to try one!

  23. #23
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    There's one on the floor at Ubikes in Boulder too. Without a caliper I couldn't tell if the rims were wider than the regular Traverse fattie.
    2 wheels

  24. #24
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    Quote Originally Posted by artnshel View Post
    There's one on the floor at Ubikes in Boulder too. Without a caliper I couldn't tell if the rims were wider than the regular Traverse fattie.
    They aren't wider for the SJ FSR 6Fattie (The S-Works has 30mm wide internal). From the Specialized website...

    "RIMS Roval Traverse 650b, alloy, disc, 29mm wide, 24/28h"

  25. #25
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    6Fattie

    27.5+ Stumpjumper 6Fattie-20150804_155811re.jpg
    Maiden voyage! Zen Trail St. George Utah.
    Pretty good at everything, but not really good at anything!

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