Quantcast
  1. The site migration has been completed successfully from vBulletin to XenForo. Please be patient with the site speed until we have finished rebuilding all of the caches - it may take a few hours. If you had previously linked your Facebook account, you will have to set it up again.

    Click here for more information.
  2. The new Classifieds are in place! The goal was to provide the best balance of usability and convenience - many liked the forum system, but some preferred the granularity of the newer classifieds. Hopefully this provides a good balance.

    Sorry, data was not migrated from the old system. Please re-list your items.

    Check out the new Classifieds here!

The Holy Grail. {What you have all been waiting for.}

Discussion in 'Downhill & Freeride' started by HaveFaith, Oct 6, 2009.

  1. HaveFaith New Member

    Rep  |  Likes:
    0   |   0
    Joined:
    Mar 11, 2006
    Messages:
    339
    Well, the long awaited upgrades to the g-boxx2 platform have finally been rolled out.

    Everyone said they wanted a lighter weight to make it race-able. How does sub-41 pounds sound?


    Everyone said that they could not live with the clunky gripshifter. How about electronic push-button shifting? Rapid-fire shifts through 5 speeds in under a second?


    And the cheesy method of converting a DH spacing hub into fixed using zip ties and spacers? How about the lightest DH specific rear hub made, with ceramic bearings to roll oh-so-smooth and fixed ring to allow for the widest flange spacing around?


    Yes, indeed, all of these issues have been addressed. It is locked, cocked and ready to blow your socks off. You will not have ridden anything like it, guaranteed.




    No more giant grip shifter to hurt your hands, no more clumsy cable runs and no more slipping rear freewheel. This chiseled piece of race metal is guaranteed to open your eyes to what a gearbox bike will do to the performance of downhill machines. I will be racing along with Ryan on two different incarnations of the g-boxx frames this weekend at the Red Bull Burner at Angel Fire, so come out and have a ride. Check it out and leave smiling.

    #1 Oct 6, 2009   
  2. DHJUNKIE Member

    Rep  |  Likes:
    0   |   0
    Joined:
    Sep 27, 2001
    Messages:
    529
    Location:
    Cromwell, CT
    nice but a clear view of the bike would be nice
    #2 Oct 6, 2009   
  3. gonefirefightin free wieners

    Rep  |  Likes:
    7   |   3
    Joined:
    Feb 5, 2007
    Messages:
    6,536
    Location:
    Surrounded by Police in a hail of gunfire
    wheres the water bottle cages?
    #3 Oct 6, 2009   
  4. Eastern States Cup New Member

    Rep  |  Likes:
    0   |   0
    Joined:
    Feb 29, 2008
    Messages:
    2,487
    Location:
    East Coast
    this bike should be banned along with those skinsuits
    #4 Oct 6, 2009   
  5. EVRAC Member

    Rep  |  Likes:
    1   |   0
    Joined:
    Jun 21, 2004
    Messages:
    746
    Location:
    Port Coquitlam, B.C., Canada
    That is the best piece of gearbox news in a long time.

    Very very well done.

    That shifter looks great, but maybe find a way to mount it below the bars so your thumb doesn't have to reach as far.

    So is that a stepper-motor controlled by a little integrated circuit and battery?
    #5 Oct 6, 2009   
  6. DirtyMike Turbo Fluffer

    Rep  |  Likes:
    1   |   0
    Joined:
    Aug 8, 2005
    Messages:
    12,269
    Location:
    My own world inside my head
    Looks great, any chance itll ever be running a belt drive at all??? Just a thought
    #6 Oct 6, 2009   
  7. HaveFaith New Member

    Rep  |  Likes:
    0   |   0
    Joined:
    Mar 11, 2006
    Messages:
    339
    Ive got a little mount designed up, should take me a day to make. Just have been having a hard time balancing real work, bike stuff and the rest of life!

    Its actually not even a stepper-motor. Just a high-power RC servo with a small 6.4V li-ion battery and audruino board. The box will definitely shrink and be more integrated, but for the time being, it works.
    #7 Oct 6, 2009   
  8. HaveFaith New Member

    Rep  |  Likes:
    0   |   0
    Joined:
    Mar 11, 2006
    Messages:
    339
    I would love to run a belt drive. However, the current box design will not allow for it, as your final drive has to have a rear cog that is pretty small 12t-14t in order to get the right gearing. The belt drives can't handle that small of a pitch diameter.

    I do think it is on the horizon though, and should be one of the next steps forward when the box is redesigned/iterated.
    #8 Oct 6, 2009   
  9. bikerpunk98199 New Member

    Rep  |  Likes:
    0   |   0
    Joined:
    Apr 24, 2005
    Messages:
    1,317
    Location:
    the hood
    Looks flexy.
    #9 Oct 6, 2009   
  10. frango Active Member

    Rep  |  Likes:
    0   |   0
    Joined:
    Jun 13, 2007
    Messages:
    1,414
    This is so cool, HaveFaith! Making and using all these things makes me believe, it's possible to make bikes better :)
    #10 Oct 6, 2009   
  11. DirtyMike Turbo Fluffer

    Rep  |  Likes:
    1   |   0
    Joined:
    Aug 8, 2005
    Messages:
    12,269
    Location:
    My own world inside my head
    Oh yeah, I forgot to ask..... Does it come in rootbeer???
    #11 Oct 6, 2009   
  12. bdamschen Active Member

    Rep  |  Likes:
    0   |   0
    Joined:
    Nov 28, 2005
    Messages:
    3,245
    Location:
    Spreckels, CA
    That is so awesome! I am sort of torn on the electronic shifting thing though- On one hand it would be sweet to ditch worrying about stuff like shifter cables and all the headaches that go along with them, and on the other hand I haven't done a night ride in like a year because I keep forgetting to re-charge the battery for my light...
    #12 Oct 6, 2009   
  13. crohnsy New Member

    Rep  |  Likes:
    0   |   0
    Joined:
    Oct 2, 2009
    Messages:
    343
    Location:
    T Bay
    Wow that is sweet. What is the expected battery life between charges? Do the buttons require much pressure to shift or just a light tap?
    #13 Oct 6, 2009   
  14. fluider New Member

    Rep  |  Likes:
    0   |   0
    Joined:
    Jun 25, 2008
    Messages:
    429
    Location:
    Bratislava, Slovakia
    This bike is one of examples why I LOVE bikes.
    Have you considered mounting the shift-box vertically, so that both buttons were equally far from rider's thumb?
    Did you turned the rear hub from Alu or steel? What's that widest flange spacing? And are those flanges angled, or perpendicular to hub axis? How much does the hub weigh?

    Not to ask only, I'll add my fixed SS hub design. Symmetrical, thru-axle, 135/10mm spacing, sprocket mounting to be revised, flange spacing 66mm (if I remember correctly), running on 2 double-row angular bearings and 2 single-row deep-groove bearings. Overall weight without sprocket slightly lower than standard 9sp hub.
    #14 Oct 6, 2009   
  15. trib New Member

    Rep  |  Likes:
    0   |   0
    Joined:
    Jun 22, 2009
    Messages:
    925
    Is this the version of the bike spooky will be seling soon or are there more revisions to come?
    #15 Oct 6, 2009   
  16. HAB Chelsea from Seattle

    Rep  |  Likes:
    0   |   0
    Joined:
    Apr 28, 2007
    Messages:
    7,754
    Location:
    Seattle
    Looks really well thought out. What's the deal with spooky? Totally out of the loop on that one.
    #16 Oct 6, 2009   
  17. slowracer New Member

    Rep  |  Likes:
    0   |   0
    Joined:
    May 14, 2006
    Messages:
    18
    yes please...
    #17 Oct 6, 2009   
  18. RMboy New Member

    Rep  |  Likes:
    0   |   0
    Joined:
    Dec 1, 2006
    Messages:
    879
    Location:
    England the Great...
    Love it! Did u lighten any of the parts up in the Gboxx like MSC?? or is that just stock from Nicolai?
    #18 Oct 6, 2009   
  19. StabprimoMonkee Member

    Rep  |  Likes:
    0   |   0
    Joined:
    Aug 4, 2008
    Messages:
    303
    What I would like to know is ETA for a frameset like this (2011-12?) and ~MSRP.

    I would also like to know if a version with larger amount of suspension fluid resistance discs will be available?
    #19 Oct 6, 2009   
  20. rollertoaster Member

    Rep  |  Likes:
    0   |   0
    Joined:
    Aug 7, 2007
    Messages:
    486
    Location:
    Royersford, PA
    Looks great, I can't imagine the amount of time invested.

    I actually like grip shift for DH. my thumb bounces around to much too not overshift on most thumb shifters.
    #20 Oct 6, 2009   
  21. jonKranked Press Button, Receive Stupid

    Rep  |  Likes:
    16   |   10
    Joined:
    Nov 10, 2005
    Messages:
    36,263
    Location:
    alcoholics unanimous
    do you have plans on coming to the east coast? I'd love to try it.
    #21 Oct 6, 2009   
  22. xy9ine New Member

    Rep  |  Likes:
    0   |   0
    Joined:
    Mar 22, 2004
    Messages:
    2,481
    Location:
    vancouver eastside
    i like my rohloff shifter as well. i've got it trimmed down close to grip diameter & moved inboard so just my thumb & bit of hand (not even up to the first knuckle) wrap around it. totally comfy & unobtrusive, lightweight & absolutely bomber. dumping gears is quick & intuitive.

    that said, not everyone likes twisters (whether based on actual experience or preconception), and i think there needs to be an alternative offering to facilitate gearbox acceptance. pretty freaking neat work building that servo controller. tho still think building a purely mechanical option should be a priority for the box manufacturer(s). reducing costs & complexity are important in developing a viable production based gearbox platform.
    #22 Oct 6, 2009   
  23. slyfink Active Member

    Rep  |  Likes:
    0   |   0
    Joined:
    Sep 16, 2008
    Messages:
    1,832
    Location:
    Ottawa, Canada
    ditto...
    #23 Oct 6, 2009   
  24. drkenan anti-dentite

    Rep  |  Likes:
    0   |   0
    Joined:
    Oct 1, 2006
    Messages:
    3,453
    Location:
    west asheville
    That is insanely badass. :thumb:
    #24 Oct 6, 2009   
  25. Sandwich just shake your rump

    Rep  |  Likes:
    1   |   0
    Joined:
    May 23, 2002
    Messages:
    12,650
    Location:
    whahlthahm, MAH
    nice work dude, way cool. Throw a ABP on there and a slightly less awkward shifter paddle, and you're serious business. You could also try a toggle kind of switch where sliding if forwards goes up, back goes down, and if you push it past a detent you get more gears...if that makes sense.

    How do you dump multiple gears now, multiple clicks?
    #25 Oct 6, 2009   
  26. Prettym1k3 New Member

    Rep  |  Likes:
    0   |   0
    Joined:
    Aug 21, 2006
    Messages:
    2,867
    Location:
    In your pants
    Looks VERY well thought out and the weight is spot on.

    My only fear? What happens if you eat it and you rip the electrical cables out? Those aren't in every mechanics tool box like extra cable and housing are.
    #26 Oct 6, 2009   
  27. FCLinder New Member

    Rep  |  Likes:
    0   |   0
    Joined:
    Mar 6, 2002
    Messages:
    4,403
    Location:
    Greenville, South Carolina
    Great job!!!!!:thumb:

    Cecil
    #27 Oct 6, 2009   
  28. epic Member

    Rep  |  Likes:
    0   |   0
    Joined:
    Sep 15, 2008
    Messages:
    962
    I'd like to see two shifters left hand for downshift, right hand for up.
    #28 Oct 6, 2009   
  29. bdamschen Active Member

    Rep  |  Likes:
    0   |   0
    Joined:
    Nov 28, 2005
    Messages:
    3,245
    Location:
    Spreckels, CA
    They will be in in the future maybe? A while back no mechanic would have thought to carry around DOT fluid for brakes.
    #29 Oct 6, 2009   
  30. Raingauge New Member

    Rep  |  Likes:
    0   |   0
    Joined:
    Apr 3, 2008
    Messages:
    694
    Location:
    Canadia
    Awesome.

    Rotate the toggle 90 degrees and point the arrows up and down and the shifter would be cool for me.

    41lbs is good. I bet with a refined design you could save more weight and add even more sex appeal.
    #30 Oct 6, 2009   
  31. LMC New Member

    Rep  |  Likes:
    0   |   0
    Joined:
    Dec 10, 2006
    Messages:
    683
    did you build/program the board yourself?

    do you have any plans to build a circuit board specifically for this application? it could save a bit of space.
    #31 Oct 6, 2009   
  32. spocomptonrider sportin' the CROCS

    Rep  |  Likes:
    0   |   0
    Joined:
    Nov 30, 2007
    Messages:
    1,323
    Location:
    spokanistan
    Just a thought (I am by no means an engineer) but if the control box could be slimmed down a bit would it be possible to mount it behind the shock? Making the weight closer to the bottom bracket and cleaning up the overall look.?
    #32 Oct 6, 2009   
  33. dump Active Member

    Rep  |  Likes:
    0   |   0
    Joined:
    Oct 12, 2001
    Messages:
    4,583
    Looks awesome. I'm looking forward to seeing this as it becomes more refined. Very nice!
    #33 Oct 6, 2009   
  34. bikemonkey New Member

    Rep  |  Likes:
    0   |   0
    Joined:
    Feb 1, 2008
    Messages:
    68
    Location:
    Santiago, Chile
    very nice. could you give some more details about it?
    #34 Oct 6, 2009   
  35. J-Dubs New Member

    Rep  |  Likes:
    0   |   0
    Joined:
    Jul 10, 2006
    Messages:
    703
    Location:
    Salem, MA
    idea fail
    #35 Oct 6, 2009   
  36. MMcG Ride till you puke!

    Rep  |  Likes:
    0   |   0
    Joined:
    Dec 10, 2002
    Messages:
    15,453
    Location:
    Burlington, Connecticut
    Is this being done in collaboration with Spooky bikes? That's where I first saw this thing I think - from a post by Mickey on one of the New England bike forums (Bustedspoke I think it was).
    Last edited: Oct 6, 2009
    #36 Oct 6, 2009   
  37. captainspauldin Member

    Rep  |  Likes:
    0   |   0
    Joined:
    May 14, 2007
    Messages:
    920
    Location:
    central jers
    Really? I like the idea, less likely to hit the wrong button and downshift instead of upshifting. One could also have more freedom to mount the buttons wherever makes the most sense(IE Integrated into the lock-on collar of your grips)
    #37 Oct 6, 2009   
  38. Hacktastic New Member

    Rep  |  Likes:
    0   |   0
    Joined:
    Aug 31, 2006
    Messages:
    2,970
    I agree. Or have them oriented vertically, or even in a standard front/rear (index finger/thumb) config. It looks easy to keep hitting that one that's to the far right.

    At least it's not a dual control lever...
    #38 Oct 6, 2009   
  39. Jason4 New Member

    Rep  |  Likes:
    0   |   0
    Joined:
    Aug 27, 2008
    Messages:
    339
    Location:
    Bellingham
    Keep the buttons on the same side. This way there is a reduced parts count as both buttons can be mounted to the same board and bar mount and also one lead can be used from the buttons to the motor. This reduces the possiblity of failures from snagging the leads and damaging them from two leads to one lead.

    Thinking in terms of failures it would be nice if there was a manual shift mechanism on the gearbox housing that would allow a specific gear to be selected to get out of the woods in case of a failure.
    #39 Oct 6, 2009   
  40. Total Heckler Beer and Bike Enthusiast

    Rep  |  Likes:
    0   |   0
    Joined:
    Apr 28, 2005
    Messages:
    8,076
    Location:
    Santa Cruz, CA
    #40 Oct 6, 2009   

Share This Page