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G-BOXX Planetary, first pics

Discussion in 'Downhill & Freeride' started by Wilhelm, Aug 26, 2006.

  1. Wilhelm Member

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    #1
  2. downhillracer New Member

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    now hikers really are gonna think we're riding motocross bkes.... anyways, any idea how much that gearbox weighs? It looks complex and weighty.
    #2
  3. Wilhelm Member

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    #3
  4. dhkid New Member

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    ok, can someone explane whats the fuss is about this?
    #4
  5. BurlyShirley Rex Grossman Will Rise Again

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    hussefelts, the best they could do?
    #5
  6. johnbryanpeters Hero

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    KG, not g, methinks...

    This is like watching a re-run of motorcycle evolution in the first half of the last century...
    #6
  7. Thrillkil New Member

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    Looks too expensive for mass consumption.
    #7
  8. Bicyclist New Member

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    Isn't that just the same as the G-Boxx that's been around for a few years now?
    #8
  9. Wilhelm Member

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    The new "G-BOXX Planetary" is conform to the G-CON transmission housing and mounting standard now. So it is no longer welded to the frame, but bolted-on. The diameters of the chainwheels as well of the primary drive as well as the secondary drive are much bigger in diameter now. So the ground clearance of the gear unit is reduced. Only the Rohloff cartridge could be nearly the same, but the chain is at the right side now! The rear brake can be mounted at the left side. The rear hub of the Nucleon AMX is a common standard hub, but without a free-wheel.
    #9
  10. partsbara New Member

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    getting Xtreme !
    You Will All Learn To Recognise Superior German Engineering !!!
    #10
  11. Wilhelm Member

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  12. partsbara New Member

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    getting Xtreme !
    does frank still ride for nicolai ??? rode with him a burg frankenstein 2 years ago... great guy...
    #12
  13. offtheedge Member

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    double post
    #13
  14. offtheedge Member

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    oh, just a little evolution
    #14
  15. Toshi Harbinger of Doom

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    europeans tend to delineate thousands, millions, etc. with the period, and use the comma as the decimal point. strange but true. :D
    #15
  16. partsbara New Member

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    getting Xtreme !
    double ender
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  17. EVRAC Member

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    What we see here is the new G-con compatible G-BOXX 1, which still uses Rohloff internals and 2-cable shifter.

    Soon we should see prototypes of the G-BOXX 2 which is non-Rohloff planetary, and uses a SRAM 9-speed shifter. Lighter, more compact and a trigger shifter sounds good to me. It also does away with the cheesy inclosed-chain primary drive.

    Hopefully www.g-boxx.com will come to life soon.
    #17
  18. Thrillkil New Member

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    As I see it, the first step towards making a commercially viable bicycle gearbox is eliminating the horrendously expensive Rohloff hub completely, which luckily seems to be the trend du jour.
    #18
  19. Wilhelm Member

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  20. Wilhelm Member

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    New pics of the NICOLAI Nucleon AMX (http://www.g-boxx.com, http://212.227.38.137/web/bike-spor...&file=article&sid=12379&mode=&order=0&thold=0), of a V-BOXX equipped GHOST DH prototype, and additional informations from "Universal Transmissions" about G-BOXX 1, G-BOXX 2-14 speed, G-BOXX 2-7 speed, G-BOXX 2-9 speed (http://www.g-boxx.com, http://www.g-boxx.com/pdf/UT-brochure-eurobike-2007-NP.pdf) and "Bike Sport News" (http://212.227.38.137/web/bike-spor...&file=article&sid=12379&mode=&order=0&thold=0).

    Attached Files:

    #20
  21. Thrillkil New Member

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    can anyone explain to me why all these designs use a single pivot concentric front drive cog? Is there anything prohibiting a VPP-style linkage with a Rohloff tensioner to eat up the chain growth?
    #21
  22. EVRAC Member

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    No. it's an open standard giving frame designers lots of flexibility.
    However, with a tensioner, you've still got chain-slap, the risk of deraillment, risk of hitting the tensioner and the need for chainguide systems. Makes it all pointless.
    #22
  23. EVRAC Member

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    - looks like I was wrong. The pic is of the g-boxx 2-14 speed. The one I'm stoked on is g-boxx 2, 7 or 9 speed.

    - g-boxx.com is online. check it out.
    #23
  24. sriracha New Member

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    i thought that they were incorperating the suntour gear box instead of rohloff.
    glad they put the chain on the right side. and i still don't see what prevents them from using a freewheel so that the chain doesn't spin while coasting. maybe they want the chain to spin for shifting reasons...but it seems like extra drag to me.
    i want one.
    #24
  25. sethimus Active Member

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    not in Whistler anymore :/
    the price of the g-boxx 1 and 2 is very interessting, nicolai doesn't cover the prices correct in their pdf. use foxit pdf editor to look what is under the black... ;)
    #25
  26. SOil New Member

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    It is intentional for the chain to spin during coasting enabling gear changes when not pedalling, under braking etc.
    And yes, some friction due to that is the price to pay. One can always use a different hub to avoid that, but I'm sure the benefits of gear changes with no pedalling are worth it in a DH run
    #26
  27. xy9ine Active Member

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    the rohloff gearset shifts without the chain spinning anyways, so its moot (on the g-boxx 1, anyways). maybe the new gearboxes do not.
    #27
  28. EVRAC Member

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    With a freewheel at the rear hub, you would have 2 freewheels, which would mean twice as much slop between ratchets if you know what I mean. That would be lame. I don't see what's wrong with a spinning chain and think of how beautifully simple the rear hub could be. Imagine a 6 bolt disk mount on both sides and just bolt the cog on.
    #28
  29. Wilhelm Member

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    May be a G-BOXX 2-18 (=2x9) speed based on the G-BOXX 2-9, with two trigger shifters (similar to shift like a derailleur drive train) would be nice.
    #29
  30. Wilhelm Member

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  31. Wilhelm Member

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  32. sjcX3oldtown New Member

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    looks like they machined the cranks to clear something ???
    #32
  33. Wilhelm Member

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  34. Wilhelm Member

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  35. atrokz Active Member

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    So Orange is working with both G-Boxx's now. Interesting.
    #35
  36. Wilhelm Member

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  37. Wilhelm Member

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    #37
  38. BMXman I wish I was Canadian

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    now that I'm in Canada maybe I will have better luck getting ahold of another Nicolai frame...D
    #38
  39. atrokz Active Member

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    Let me know :cheers:
    #39
  40. BMXman I wish I was Canadian

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    Are you back to distrubuting Nicolai again?...D
    #40