Power in Flux

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Type: Posts; User: Spoonman

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    I'm with greg on this. I don't see any way to...

    I'm with greg on this. I don't see any way to handle that sort of unsprung mass in a sports chassis.
    I could be convinced of a cruiser alright, but even the biggest sports or tourer chassis would...
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    In case it's useful, the Vectrix throttle is...

    In case it's useful, the Vectrix throttle is available here:
    http://www.shop.vectrixparts.com/throttle-handle-complete-with-tps-and-grip.html

    Rolls about 90degree back for acceleration and about...
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    Looks like a nice easy fitout dude - great job so...

    Looks like a nice easy fitout dude - great job so far - and well done on the parts selection.
    That motor marries pretty much perfectly with those modules and that controller in terms of what they...
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    I have an old CBR F2 Chassis here with two...

    I have an old CBR F2 Chassis here with two forktruck motors in it. They do the job just fine for playing around and learning, and they're cheap and easy to control.
    So as a first effort, a fine way...
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    Welcome aboard Marcus - great to have you.

    Welcome aboard Marcus - great to have you.
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    Welcome aboard folks!

    Welcome aboard folks!
  7. Welcome aboard dude.

    Welcome aboard dude.
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    Sounds to me like what you need is a Vectrix...

    Sounds to me like what you need is a Vectrix VX-1.



    You don't need to worry about that - the actual rotating (not reciprocating) components in an ICE motor aren't that substantial.
    The rotor...
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    There are three primary reasons why they don't...

    There are three primary reasons why they don't exist already I'm afraid:
    1 - battery prices
    2 - battery volume
    3 - battery mass

    The former means that 100km worth of pack is going to cost...
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    "Just for the hell of it" is also an entirely...

    "Just for the hell of it" is also an entirely appropriate reason.
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    Very much a matter of budget and what you call...

    Very much a matter of budget and what you call 'fun'.

    The best offering on the market right now in terms of replacing a commuter roadbike is the Zero SR (F or S) - so if you have the funds and...
  12. Unsprung mass is unlikely to affect the handling...

    Unsprung mass is unlikely to affect the handling of a machine like that all that adversely - I wouldn't be too concerned.
    Take a look at this thread for some relevant commentary.
  13. Given you're tall, I'd go for a...

    Given you're tall, I'd go for a dual-sport/trailie type.
    Varadero, V-strom, Tenere... etc...

    On the whole, that spec seems fairly optimal - by which I mean that you'll be using it to its full...
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    Series capacitance == (C1*C2)/(C1+C2) --> If...

    Series capacitance == (C1*C2)/(C1+C2)
    --> If C1=C2=1e-3F, when arrange in series the capacitance of the network becomes 5e-4F (half of the capacitance of either one, but with twice the rated...
  15. Meet the RGNT No.1 This is something like what...

    Meet the RGNT No.1

    This is something like what would be awesome to do with that little machine (url here):

    https://regent-motorcycles.com/wp-content/uploads/2019/09/rgnt_v04.jpg
  16. That's an interesting looking kit there alright -...

    That's an interesting looking kit there alright - unfortunately I know nothing about it so I'm not in a position to advice beyond saying that 3kW aught to perform like something with about 5HP, which...
  17. I'm afraid your budget is a good deal too low for...

    I'm afraid your budget is a good deal too low for anything to achieve that spec dude.
    You'd be doing pretty well just to get sufficient batteries for that range at that price, and that's before you...
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    Welcome aboard Filip!

    Welcome aboard Filip!
  19. "...303 Wh/km..." ...

    "...303 Wh/km..."

    https://media.giphy.com/media/uv0vUnOnGTivK/giphy.gif
  20. To be fair, I expect that easy 'trailering' is...

    To be fair, I expect that easy 'trailering' is actually a very legitimate concern for most Harley owners alright.

    ;)
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    I've heard about those cheap ones alright - I...

    I've heard about those cheap ones alright - I expect they will upgrade quite well provided you can either reprogram or replace the charger, and ideally fit a BMS as well.
  22. Bent steel tube in the case of trellis, and...

    Bent steel tube in the case of trellis, and welded pressed forms in the case of aluminium for the most part AFAIK.
    Machine finishing a cast would certainly be more work than welding up a frame. You...
  23. Very different load profiles between scooter and...

    Very different load profiles between scooter and streetbike performance.

    I'd be concerned that the proposed 'chassis' design would be overly stiff - granted we're unlikely to be pushing them to...
  24. As for the beemer - looks like the "chassis" is...

    As for the beemer - looks like the "chassis" is intended to be the battery box... that's daring.
    Not sold on that rake angle for a roadster.
  25. Oh I like that! :cool:

    Oh I like that! :cool:
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