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  1. Woosh

    Purely Hypothetical

    several 2WD projects were posted on the forum over the years but there is no real advantage, just more weight. About 2/3 of your weight is on the rear wheel. Adding a front wheel drive would only add about 50% extra traction and you lose on maneuverability. The rotating mass of the motor creates...
  2. Woosh

    Battery do i expect to much

    consumers prefer low weight - manufacturers give them lower weight by reducing the thickness of the lamination and the battery's longevity. the choice of chemistry also favours lower weight over reliability: LiFePO4 lasts longer and costs about the same as Lithium-ion, but would you buy it if...
  3. Woosh

    Introducing the new Woosh Rambla

    from memory, with the suspension post, from ground to top of saddle is 89cm minimum with the suspension post, 85cm with non-suspension post. Saddle post diameter is 27.2mm
  4. Woosh

    Just bought a used Woosh Fat Boy

    hub bikes are not as good on steep hills as crank drive bikes. 15% gradient is easy with crank drive bikes but practically the limit for most (95%) hub bikes. The Fat Boy is very good on hills but 13%-15% gradient is about as much as it would climb. Here is the simulation...
  5. Woosh

    Introducing the new Woosh Rambla

    thank you Alex.
  6. Woosh

    Woosh Rio first thoughts

    no. The Camino does not have the same programming.
  7. Woosh

    Woosh Rio first thoughts

    go into advanced setup and set the assist levels. Follow these steps: 1. switch on the LCD. Press and hold both - and + buttons for 2-3 seconds. You are in setup mode. 2. Press and hold again both - and + buttons for 2-3 seconds. You are in advanced settings. 3. Select power settings (first...
  8. Woosh

    Woosh Rio 17 Ah will a 3 amp charger be ok for this battery

    not that one which is a 48V charger. You can use a 3A charger but it must be 36V charger.
  9. Woosh

    Just bought a used Woosh Fat Boy

    he should give us the location of the hill so we can see.
  10. Woosh

    Just bought a used Woosh Fat Boy

    you still don't get it. The OP has a G06, his situation does not call for overvolting. If he wants speed, he does not have to spend anything. If he wants to climb 10% hill, he does not have to spend anything. Why should he (or someone with a similar kit) spend £400 to run his bike at 48V? Now...
  11. Woosh

    Just bought a used Woosh Fat Boy

    the battery consumption is pretty much the same, 36.8WH/km against 36.9 WH/km don't see much in it. there may me a tiny difference in motor yield at that point but it's difficult to solve the yield equation without knowing the frequency and pulse width/duty cycle. BTW, the equations and formulas...
  12. Woosh

    Just bought a used Woosh Fat Boy

    of course I asked Bafang to make me 250W G06. yes, power consumption. Use my original configuration, Lishui 17A G06 and change the gradient to 8.5% - 29WH/km Your system A G06 same gradient: 35.7WH/km Your system B G06 same gradient: 37.8WH/km Your system A XF07 same gradient: 49.5WH/km Your...
  13. Woosh

    Just bought a used Woosh Fat Boy

    You misunderstand the nominal power. 500W on the simulator is the capacity of the copper and magnets, not the nominal power which is 250W and is used on flat roads. If you respect the speed limit, the bike uses only about 200W to maintain 15mph on a flatish road. There is absolutely no need to...
  14. Woosh

    Just bought a used Woosh Fat Boy

    the motor on the OP's Rio fat boy is a Bafang G06. It's twice as big a the MXUS07. Here is the simulation: https://www.ebikes.ca/tools/simulator.html?motor=MG60_500&cont=C25&grade=4.5 this is with the supplied 17A Lishui controller and 17AH battery...
  15. Woosh

    Just bought a used Woosh Fat Boy

    now let's consider the financial argument. As I posted earlier, it would cost the OP about £400 for a battery, controller, LCD and wiring loom. In fact, it's the same stuff as in my 48V SWX02 kit minus the motorwheel...
  16. Woosh

    Just bought a used Woosh Fat Boy

    wheezy, you misunderstand my position. When you optimise, you consider compromises. That's why I asked you to select your motor winding for your 52V or 59V battery. Vfr400 posted the motor winding table for us to use. I use of course the same table because I buy the motors from Bafang...
  17. Woosh

    Just bought a used Woosh Fat Boy

    agreed. I re-order the same code times and times again, so easy misquotes. My 48V motors have code 16.
  18. Woosh

    Just bought a used Woosh Fat Boy

    wheezy, you stick a higher voltage to a lightbulb, it will glow brighter but you know already by experience why you wouldn't do that nor would you want to connect that lightbulb to a flat battery. The argument about motors will run and run because people have all sorts of idea what a BLDC motor...
  19. Woosh

    Just bought a used Woosh Fat Boy

    as it is said in your booklet, the controller is a DC to AC inverter. The current in the motor is AC, the current from the battery is DC. The efficiency of the motor is principally a function whose main variable is the RPM. How can overvolting a 36V controller make the motor more efficient...
  20. Woosh

    Volt Axis very good with a little bad.............

    agreed. Most problems are self built bikes or when the manufacturers have folded. The forum is an excellent resource. Long may it live.