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  1. derb

    Sur-Ron - New Mid drive Bike

    https://endless-sphere.com/forums/viewtopic.php?f=28&t=89902&p=1425582#p1425582
  2. derb

    Sur-Ron - New Mid drive Bike

    http://www.eastgem.net/on-board-charger.html
  3. derb

    Sur-Ron - New Mid drive Bike

    Does anyone know a European dealer who sells the foot peg bracket plates?
  4. derb

    LMX Motor - Kelly Controller - Hall Problem?

    I would like to use a 2018 LMX Motor for my Etricks R01. As a controller, I have a Kelly KBS 72181E. The problem is: The Hall sensors make short pulses before and after the main pulse. As a result, it runs rough and needs too much power (4-5A at 72V at full throttle without load) and fluctuates...
  5. derb

    Sur-Ron - New Mid drive Bike

    Little Upgrade. Fox 40
  6. derb

    Sur-Ron - New Mid drive Bike

    At 2500km I changed the chain. As soon as you lift a chain link over half the tooth height on the sprocket, you should renew the chain. The teeth on the sprockets are still looking good and will not be changed yet.
  7. derb

    Sur-Ron - New Mid drive Bike

    Can you do that again at 20 to 30km / h? I would be interested in whether the engine has its own resonance frequency in this area. Thanks
  8. derb

    Sur-Ron - New Mid drive Bike

    I'll have to find out for myself. Or does someone have a comparison?
  9. derb

    Sur-Ron - New Mid drive Bike

    The noise gets on my nerves from the belt at ~ 20-25km / h (~ 15mph). I once lowered the tension, then it got better, but after some time the annoying noise came back anyway. Will replace the belt with the chain kit as soon as the belt is broken.
  10. derb

    Sur-Ron - New Mid drive Bike

    I got the Saint on Black Friday for -20%, the difference was not that big anymore for the Zee. In addition, I already have a Zee on my other bike and wanted to test for myself how the difference is from the Saint to Zee. I had to shorten the hoses for front and back. If you take care that...
  11. derb

    Sur-Ron - New Mid drive Bike

    I have Regen. For that I only need to go off the gas. At about 1500km I had to change the rear brake pads.
  12. derb

    Sur-Ron - New Mid drive Bike

    One week ago I reached the 2000km (1250 Miles). short feedback: - Every 200-300km / 125-188 miles I have to retighten the chain. - I had to renew the brake pads - Spoke tension had to be re-tensioned. - The steering head bearing makes crackling noises and must be replaced. The Sur Ron is...
  13. derb

    SURRON LB: RESEARCH & DEVELOPEMENT

    Can you tell me the weight of the tire?
  14. derb

    Sur-Ron - New Mid drive Bike

    The range extender battery will be connected in parallel. The current is divided between both batteries and depends on the internal resistance of the battery. The larger (more cells in parallel) the battery is constructed and the lower the resistance of the cells is, the more current is taken...
  15. derb

    Sur-Ron - New Mid drive Bike

    Performance with the X controller Idling full throttle ~ 0.8kW Full throttle uphill ~ 4.5kW Eco full throttle uphill ~ 2,9kW Measured between full battery and controller. At the end of the battery life, the power goes down to 3.7kW linear. Depending on the state of charge of the battery. I'm...
  16. derb

    Sur-Ron - New Mid drive Bike

    This Battery Gauge...
  17. derb

    Sur-Ron - New Mid drive Bike

    Weight of tires: Original CST: 2096g Pirelli Scorpion MX32 MidSoft (Front): 2338g (complete Wheel: 4768g) Pirelli Scorpion MX Extra (Rear): 2278g (complete Wheel: 5487g) I did not want too heavy tires, I noticed that in my Etricks the acceleration went back when I used 3.5 "wide motocross tires...
  18. derb

    Sur-Ron - New Mid drive Bike

    @Allex Yes, these are Zefal FM30 fenders. I cut open a fatbike tube and used it to protect the suspension. I had tried the 58 tooth sprocket with the stock controller, but I did not like the reduced speed at the top. From my feeling, the X controller has the same punch at low speed with the 48...
  19. derb

    Sur-Ron - New Mid drive Bike

    New Tires: Pirelli Scorpion Tested on wet trails yesterday. I am very satisfied with the grip
  20. derb

    Sur-Ron - New Mid drive Bike

    It is very difficult to see this small digit on the display when accelerating hard. I had once seen 79A, but did not really look often at it. I have the X-Controller.
  21. derb

    Sur-Ron - New Mid drive Bike

    I installed a battery meter...
  22. derb

    Sur-Ron - New Mid drive Bike

    After several great rides, the first defect has now occurred. The battery percent indicator is dead. The last time it was turned on it was a bit pixelated to see how much% of the battery had (see picture), but now nothing comes. Have tried all the tricks - everything off, cable off, press the...
  23. derb

    Kelly Controller - after programming engine is turning backwards with high current at low load

    Could you please help me? Following problem: I have changed two parameters and now the engine is turning backwards and has a high current at low load. In addition, it runs at idle speed much faster than before. What I did: On the Kelly Controller I reduced Max Regeneration Current from 75% to...
  24. derb

    Cycle Analyst V3 preview and first beta release

    I found the problem. I had to set the Throttle Up / Downrate to Fast (1) at the Controller.
  25. derb

    Programming Kelly KBS Controller

    The programming works with a TTL to RS232 converter (Max232). There is a circuit diagram for this on the first page of the data sheet of the Max232.
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