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  1. The Toecutter

    Leaf / leafmotor / leafbike high efficiency 1500w motor

    At 72V, the 1500W is more like a 2500+W motor continuous, and often 4000+W for the duration for which a battery can keep delivering power as Cowardly Duck attested earlier in this topic. I will only need enough torque to get up each hill without overheating, in which the motor would get to rest...
  2. The Toecutter

    Leaf / leafmotor / leafbike high efficiency 1500w motor

    "Worthwhile" depends upon your goals. If you were building a fast HPV streamliner or a velomobile, the 1,000W version may be the better option due to the higher kV rating, giving you more top speed per V at the expense of less acceleration per A. Most components are limited to 72V nominal so...
  3. The Toecutter

    My first ebike build: custom-built KMX-based electric velomobile

    I still have it. It's in very rough shape from the tens of thousands of miles put on it in all weather conditions, plus it was rear-ended at a stoplight(and later repaired), and is no longer sturdy as a result. I will be making a new shell to accommodate 4 wheels instead of 3.
  4. The Toecutter

    My first ebike build: custom-built KMX-based electric velomobile

    The rear suspension is very solid, but if you drill the holes even slightly off, you could weaken the frame more than you would want to.
  5. The Toecutter

    My first ebike build: custom-built KMX-based electric velomobile

    http://kmxsuspension.epizy.com/?i=1 adam333 on this site sells them. Just brainstorming. I need to keep mass in check. The ICE would possibly never be used even if I installed one, just because of how uncommon the need to use it would arise. The idea is to make an apocalypse-ready vehicle I...
  6. The Toecutter

    Leaf / leafmotor / leafbike high efficiency 1500w motor

    That shell reduced consumption by slightly more than half at 30 mph on throttle only, but as speed rises, the disparity between shelled and unshelled increases because rolling resistance is such a large percentage of the power consumption at lower speeds, and my tires are relative boat anchors...
  7. The Toecutter

    Leaf / leafmotor / leafbike high efficiency 1500w motor

    Not calculations, data points: 0.007-0.009 kWh/mile @ 30-35 mph with pedaling. Throttle-only, approximately 400W @ 30 mph Unmotorized, I did some roll-down tests, input the results into a spreadsheet, and got a CdA estimate of 0.20 m^2. This was with the shell on it. Without the shell...
  8. The Toecutter

    My first ebike build: custom-built KMX-based electric velomobile

    I have no problem with this argument existing in my thread. Just be cordial about it. There's valid arguments made by both parties, and anyone reading this thread can learn things from both, even if there is disagreement, and even if I think one individual is more right than the other. That...
  9. The Toecutter

    Milan SL velomobile conversion

    As long as they don't mind my 100% legal emotional support flamethrower being carried onboard. 🤪
  10. The Toecutter

    My first ebike build: custom-built KMX-based electric velomobile

    I was intoxicated!
  11. The Toecutter

    My first ebike build: custom-built KMX-based electric velomobile

    Understood. I've had the Milan up to 89 mph downhill!
  12. The Toecutter

    My first ebike build: custom-built KMX-based electric velomobile

    The rear suspension extended my wheelbase out. The "dork disc" would add another layer of protection against catastrophic failure, but having a single rear wheel still means such failure can always occur in some way. With the single Leafbike 3T in the rear, running 46.8V and 250A phase current...
  13. The Toecutter

    My first ebike build: custom-built KMX-based electric velomobile

    I think he means Idaho.
  14. The Toecutter

    My first ebike build: custom-built KMX-based electric velomobile

    Makes me want to fabricate a spacer that goes between the freewheel and the hubmotor so that this can never happen! Fortunately for me, the gap between the freewheel and hub is wide enough that the chain has never gotten caught.
  15. The Toecutter

    My first ebike build: custom-built KMX-based electric velomobile

    I rarely have time to make progress on my project. The shell is off the trike at the moment but I got it running. Do you know what caused the rear wheel lockup? Also, do you sell kits, and/or could you share your rear frame/differential/suspension design and/or a parts list so that I might...
  16. The Toecutter

    Leaf / leafmotor / leafbike high efficiency 1500w motor

    Before installing my Leafbike 1500W in my coroplast-bodied velomobile, I was pulled over by police for doing 45 mph, entirely under my own leg muscles coupled with some help from gravity. These laws are retarded. Whether I have a motor or not and regardless of how many Watts it is capable of...
  17. The Toecutter

    Leaf / leafmotor / leafbike high efficiency 1500w motor

    Everything depends upon how many units are produced over how many years. It's conceivable that the increase in cost could be only $50 per unit if enough motors are produced fast enough, which in turn will provide enough of an improvement that people would consider such a minor cost increase...
  18. The Toecutter

    Leaf / leafmotor / leafbike high efficiency 1500w motor

    I want to see a PMDC motor with 95%+ efficiency that is at least as capable of continuous power like the current Leafbike 1500W, but with significantly less mass, less cogging torque losses, that uses stouter axles. Or perhaps a new axial flux or switched reluctance design that does the same...
  19. The Toecutter

    Amberwolf's Schwinn Trike Rebuild / Conversion to Heavy Cargo Hauler

    I like what you are doing with this build. I don't have much in the way of advice to offer for it since your resources are limited and you and others here have already figured out most of it. Should you ever build a canopy, it would be a great place to put some used solar panels, which you...
  20. The Toecutter

    Walmart USA's Concord ebikes - the ezip of today?

    Walmart lately also has offered a seemingly decent quality full-suspension mountainbike that would make a good base for dirt cheap: https://www.walmart.com/ip/29-FULL-SUSPENSIONL/8463370186 I'd trust this to cruise at 25-30 mph, and maybe take it to 45 mph in ideal/safe conditions for short...
  21. The Toecutter

    A 'Make it with a Jig-Saw' wood 'velomobile'. Cheap and cheerful :)

    On a vehicle with 3+ wheels, you have increased crosswind stability, and therefore it would make sense to cover at least the top half of the wheel. This also assures no ground clearance issues even when going offroad, but gives you most of the aero benefit of covering the entire wheel. If I had...
  22. The Toecutter

    A 'Make it with a Jig-Saw' wood 'velomobile'. Cheap and cheerful :)

    This deserves much better aero, and could get it without increasing complexity, mass, or build difficulty. It will take a few hundred hours of fabrication and experimentation to get it right. For an aerodynamic open-wheeled design that is easy to fabricate and practical to use, look to the...
  23. The Toecutter

    DDOSed by alibaba cloud

    The joke is on them. Often, my writings get mistaken for AI-generated text. This has been the case on other places where I have posted, where subsequently I have been accused of being a "shitposting bot". It is amusing.
  24. The Toecutter

    Leaf / leafmotor / leafbike high efficiency 1500w motor

    The Phaserunner got hot to the touch running the 4T a 1500W/96A on the velo. It's fine on the mountainbike at 750W/96A. The BAC4000 paired with a 3T was the best upgrade I ever did for my trike. I might try 12kW/300A at some point going to it. This in addition to what will be two Grin all-axle...
  25. The Toecutter

    Leaf / leafmotor / leafbike high efficiency 1500w motor

    If acceleration performance is not a major issue, I recommend the Grin Phaserunner. Make sure you get the MT version with connectors that you can use with the Leafbike motor. It's proven very reliable for me, except for the XT60 connectors fusing. Simplest fix is to program max phase current to...
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