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  1. Thud

    Stark Future : Varg electric motocross 450

    Ive been watching all the reviews from the moto world press that were invited to ride the pre-production bikes & review it.....Its amazing to see the grin on every riders face coming in after their 4 lap stint. So far the reception is better than i thought it would be....the bike is good out of...
  2. Thud

    Legends dropping like flies

    RIP Aussie Jester. Kim Brent Dybing has laid his burden down.
  3. Thud

    Farfles Electric Ultralight.

    I just got the news.....Like we needed another reason to loath 2020. RIP Jackson. Condolences to the family & all his friends. World class guy. Sad.
  4. Thud

    Electric 450 CRF conversion.

    hehe, I drop by to see if there is anything interesting (to me at least) & I find My old friend Arlo1 still Building cool stuff. Bravo brother. I needed this today.
  5. Thud

    Custom 80100 RC Drive on Genesis Swing-arm

    yes, physically (into the direction your spinning the rotor). Easyest done with external hall set up. For internal placement, I started using "between the phase prs" for positioning & payed attention to rotation to have the advance going in the correct/desired direction. (if my math was right...
  6. Thud

    Custom 80100 RC Drive on Genesis Swing-arm

    Dan, In my experience, my best overall setting for hall timing was between 3 & 5 degree's advanced from lowest amp draw unloaded. you will get some stutters at the extream load (starting from a dead stop) but this should wake the motor up from 1/3 speed to the top. Idealy these motors are...
  7. Thud

    Fitting freewheels to splined freehub drivers

    whoa....those are free wheelers. sweet, but: " Will you please let me know if this freewheel is compatible ( fits)with the shimano freehub if not , what hub is this freewheel compatible with? Posted by Dario on 15/11/2015 Reply from TartyBikes on 16/11/2015" reply: "Hi Dario - This freewheel...
  8. Thud

    Another 2-speed dogbox

    That's some lovely modeling. free advice: You may want to add some "cush" to your design to help absorb the load spikes to the system. Are you thinking of a grease packed primary reduction? small gears are great for light loads, but do the math when scaling them to bicycle/light moped...
  9. Thud

    Burnt motor when setting my VESC controller

    From a casual glance, I suspect the winding on that stator tooth as defective. or was damaged. Q?-has that motor ever run on any other controllers for a period of time? In an over-current event, I would expect to see more discoloring of all the windings involved. (that would be the adjacent...
  10. Thud

    Where's the pedals?

    you can't get that thing in 3rd gear in that room...... :P
  11. Thud

    Design for high powered freewheel sprocket for e-bikes

    I am with recumpence on this one also, BMX chain is tough...& the 418 heavy duty (still bicycle) chain is tougher yet if you have any concerns. #35 is great if you need finer gearing choices, is less expensive than "premium" grade bicycle products, but you will be fabbing more "special" parts...
  12. Thud

    Design for high powered freewheel sprocket for e-bikes

    Highly regarded....lol, (thanks) I could/should have been more clear, putting a freewheel on the driven end of the reduction introduces quite a bit of "play" in the drive set up... if you put the freewheel on the driving sprocket you will reduce the hammering on the pawls. & this is where a...
  13. Thud

    Racing and efficiency

    For lack of a better place to post this: CcOmKjWzF1Q
  14. Thud

    Spinningmagnets 3Dprinter project-build log

    Hey Amberwolf, Havent made time to play with the wax filliment yet. Busy season at work has me tied down 50+ hours a week. I'll make a point of looking for something to print & cast (prolly something simple LIke a ring) & post it up.
  15. Thud

    85mph on leg power alone...new record at Battle Mountain

    iOmP63m1byA
  16. Thud

    Holy Exploding Tires Batman!

    If that's a Skyway Wheel, they have limitations to max pressure. My 20" wheels have came with a sticker 60# max my older 24"s have it molded into the rim.
  17. Thud

    Light weight full suspension mountainbike --WITH VIDEO--

    Gorgeous as always Matt....but you need to take 5 minutes & program your camera.....or is it really Jan. 6th 2003?. :mrgreen:
  18. Thud

    Racing and efficiency

    I didn't know where to put this interview with the Alta creators....& some good footage of the bike in action...I still say it needs to lose 50#s but its looking better every time i see it in action. MORcWFtWJbM
  19. Thud

    BMX left hand drive

    you could blow torch it off.... :twisted: but its a option for gluing on an adapter on threads that are not favorable to left side drive.
  20. Thud

    BMX left hand drive

    metal re-enforced epoxy... look at dp-460 http://www.ebay.com/sch/i.html?_from=R40&_trksid=p2050601.m570.l1313.TR0.TRC0.H0.Xdp-460.TRS0&_nkw=dp-460&_sacat=0
  21. Thud

    Racing and efficiency

    Another perfect example of no one reading the op..... Does any one here think the KTM in that video is anything other than weak sauce? (or remotely competitive with a modern 4-stroke 250cc ice on a real course?) You can spout off about single speed all day & be right.....but no one can produce...
  22. Thud

    2 speed gearbox/jackshaft

    Its lovely. I am curious about the ratio spread.(current design & the min/max potentials) also looking forward to some section & cut-away renderings. thanks Miles.
  23. Thud

    Racing and efficiency

    on topic: JLdp1Kz0naI E-motocross is coming.....There is some incredible urban motocross potential if we could stifle the noise a good race bike makes. the KTM in this video is so close to being there (except in price)...not a frail bicycle conversion.....but really, still no match for a 12...
  24. Thud

    Racing and efficiency

    Moto, You are trying to mix oil & water.... I won't tell you to get a fat motor & battery for motocross performance....because I don't believe for a second that one solution is the final answer to every problem. What we need is a motor that delivers the minimum amount of torque required to...
  25. Thud

    Spinningmagnets 3Dprinter project-build log

    whooo whoo My wax filament delivered today....time to figure out a strategy to keep the slippery stuff on the build table. I am thinking a coat of pva followed with a spritz of 3M77....stay tuned. for anyone looking for printing wax.... http://www.machinablewax.com/product.php?product=52
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