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  1. D

    Pedal delta trike into electric tadpole

    There is an unusual, rear-steer delta trike called the Mobo Triton Pro which I'm considering going Dr. Frankenstein on. It has a 20 inch, pedal driven front wheel... but what if the seat faced the other way and the now-rear wheel had a hub motor? It would then be an electric-only tadpole. At...
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    Lyric Scooters / United States

    My Lyric Ranger has one good battery pack and one bad one, so I've been looking at alternatives. After some voltage and resistance measuring I figured out how to connect four 12v SLA batteries in series to the terminals which stick up where the original batteries would plug in. In this pic, the...
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    RideKick controller production problem

    I bought a RideKick powered trailer recently. Noticed that the controller was tripping quite often. Took a look at it, and discovered this: The heat sink only contacts the edge of the right-hand FET. Clearly it's a production error - the pad of heat-transfer stuff is the correct size but...
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    StokeMonkey/Xtracycle

    I've used these for cold-weather motorcycling and they work well. Just make sure they're Velcroed on carefully so the closed ends are actually closed :)
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    When E-Bikes Attack!

    There are many disabled folks involved in motorsports, ebiking or otherwise - while being autistic doesn't impair my pedaling ability it makes life interesting in other ways. I wanted to say that before passing along something else disability-related which I thought was very funny. The British...
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    Delta trikes with leaning saddle and front wheel

    One other factor: jumping a 3-wheel ATV and landing on the front wheel is a great way to get maimed or killed if that wheel doesn't stay pointed straight ahead. IIRC some ads for the things even showed them being jumped, even though the consequences of doing it wrong were so harsh...
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    E-Bike Racing: 2011 World Challenge

    Just ran across this thread. It looks like the poster of its second message thinks that likening something to the Special Olympics sets the bar laughably low. How sadly mistaken. Take it from someone who has watched his kid compete in the Special Olympics: you have no idea how high you've set...
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    sla 3x12v12ah losing speed question

    Per month? How did you arrive at this conclusion?
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    Manly dropouts Improved Fronts & Rears new pics pg 3

    The fellow who used an ultracapacitor as a power source wound up putting a bolt through the axle to stop rotation, but there's a lot more metal in your setup... http://endless-sphere.com/forums/viewtopic.php?f=6&t=7511&hilit=ultracapacitor&start=30#p122326
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    Dropout Failure Experiments, and a call for Fork Donations

    Not if the testing involved both dropouts... might it be feasible to test the dropouts on each fork separately - that is, one side at a time? There may be an obvious-to-everyone-else reason this wouldn't work, but figured it couldn't hurt to ask.
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    Heat Sink for Geared Motors?

    And on the side where the wires exit, it could help protect 'em in the event of a spill. Instead of a thread-on thingie with fins, what about a larger piece of stock which ran up alongside the forks? More mass, more surface area, more airflow across it... and imagine the styling possibilities...
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    AMPS: 12,24,36volts = most efficient

    If I could try to extend the comparison a little - imagine trying to take a shower under the bucket, and look at voltage as being how high the water is in the bucket. So a big stream of water from a shallow bucket would pour out but not very forcefully. That'd be a lot of amps at low voltage...
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    Torque arms from Ebikes-ca w new pictures

    I wonder if anyone has tried welding two-piece torque arms together once they're adjusted properly... wouldn't this help make the assembly more rigid? Any small tendency for the axle to rotate would be turned directly into push or pull against the fork tube. I realize this should happen...
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    Why the plug-in bicycle beats the plug-in Prius

    It's a question of using the right tool for the job. My current Netflix disk is six episodes of a PBS series called "e2: Transport". Just watched an episode about the bike-rental system used in Paris - those machines are heavy-duty, and just for a moment I mistook their drum front brake for a...
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    36 volt folder going 25-30 mph?

    +1 for referencing the original version of a movie sent up on MST3K 8)
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    ezip motor style bike kit

    ...and that's one of the things I love about this place :D New information - either equipment, projects, or experience/data - shows up all the time. It's cool to be even a very small part of a community like this...
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    Ezip mod questions

    Mine has the controller in an upright compartment just behind the pedals. On newer models, the controller is in the center part of the battery rack. I don't know whether that change was made at the same time the controllers stopped accepting 36 volts, though...
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    Ezip mod questions

    I have an older eZip which I bought in fall 2007. It has the controller it came with, which accepts 36 volts. Since the original battery pack battery pack is two sealed lead-acid (SLA) batteries in series, I would get a third SLA battery of the same capacity as the others, which are 10...
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    TNC Scooters has restocked and has new motor models

    I wonder if TNC's specs for that transaxle motor are correct... I found this page, which describes it as a wheelchair motor and says at 24-48v the power is 200-800w: http://cndcmotor.dagang360.com/product.php?id=57640&file=Products&prod=prod&uid=cndcmotor The way I interpret that, at 24v the...
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    TNC Scooters has restocked and has new motor models

    Well, some amount of weight would be necessary for traction, else those 800 watts would do burnouts rather than produce thrust :) At some point the weight of the trailer would make braking more of a chore, though.
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    Ezip mod questions

    The two stock batteries in series would give you 48 volts, which would probably make the motor do impressive things for a short time before it overheated. Some folks have modified their motors by cutting holes for air cooling, but that kind of modifying is more than I wanted to attempt. I'd...
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    Ezip mod questions

    Others have posted that newer eZip controllers will not accept anything over 24 volts - that they would just refuse to operate at higher voltages. Wiring the two batteries in parallel would be kinder to them (and keep them from sagging as quickly) than using them one after the other (but...
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    TNC Scooters has restocked and has new motor models

    This item caught my eye as well: http://tncscooters.com/product.php?sku=106124 It's an 800-watt, 24-volt transaxle. From axle tip to axle tip, it's a hair under 24 inches wide. Shaft speed 260 RPM. I've just now had my second cup of coffee, but it looks like that translates to about 22mph...
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    WOW! Neat Idea!

    Okay, but don't wear those shoes to an airport...
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    .

    At 746 watts per horsepower (http://en.wikipedia.org/wiki/Horsepower), that's only a 250-watt motor...
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