Search results

Date Relevance Most replies

  1. E

    Sabvoton 72150 very low torque at low speeds

    Hi I have an unlocked 72150 set at 200 amp DC which I use with my sur-ron along with a 72V 42ah battery (30q cells) My issue is that at low speeds (<30kmh) the torque is very low but once I reach 30kmh or more the bike starts accelerating way quicker.Feels like NOS to be honest :D . So...
  2. E

    bluetooth BMS?

    Hi I have a jbd-sp30s005 bms hooked up to a 24s20p pack with 30Q cells. When the bms is balancing there is voltage spike on certain cell groups what triggers over voltage as well so my charger turns on and off every 5 seconds. Is it normal behavior or the bms is faulty? Also the cells are...
  3. E

    Qulbix Q140MD - any experience?

    nope,because I wasn't the one who built this bike.
  4. E

    Qulbix Q140MD - any experience?

    24s 20p in 3 seperate battery boxes (samsung 30Q) so 60Ah which is about 5.32kWh
  5. E

    Qulbix Q140MD - any experience?

    35kW power,5.2kwh battery.ME1507 motor,sevcon gen 4 size 6 controller. It was built by a guy in Hungary from a KTM 350 SXF 2017 so it's custom.I bought it for 6800€ I see you live in the USA. then just buy a used Alta redshift mx :lol:
  6. E

    Qulbix Q140MD - any experience?

    https://photos.app.goo.gl/pPdsbB2Fu6AENzEv5 I loved my qulbix as well until I bought a sur ron :lol: Even tho sur ron is only 5kW,it's way more fun because of the low center of gravity,and smaller size.After buying a sur ron I never touched my qulbix again. The qulbix feels top...
  7. E

    Qulbix Q140MD - any experience?

    I sold this junk,and bought a custom electric ktm with 35kW power,~5.2kwh battery. The motor barely gets warm even after torturing it really hard.It's impossible to overheat it :D and all that with 120km/h top speed gearing.
  8. E

    Sevcon Gen 4 size 6 fault with shunt

    Hi Anyone had similar issue with cycle analyst and sevcon gen 4? When I put the shunt between the B- and C- the controller shuts down with 'Motor over current' and 'Current control' fault above ~15kW load or at higher RPM. If I remove the shunt everything works perfectly again.The shunt is a...
  9. E

    Qulbix Q140MD - any experience?

    Well yeah.. It's a good bike but unfortunately they didn't take the time and money to develop a truly great ebike.It's an outdated bike with cheap/badly designed parts there and there. Don't build anything with a HUB motor. Especially if the motor is located in the rear wheel.Every single one...
  10. E

    Sur-Ron - New Mid drive Bike

    I tried basically everything including spraying water on the belt. It's just a badly designed product.
  11. E

    Sur-Ron - New Mid drive Bike

    Luna belt drive kit. It's nice and quiet,but there is an issue what was discussed on their facebook page and confirmed that "this wookie growl sound is normal". Unfortunately they deleted the discussion to hide the facts from future customers. The issue is a buzzing sound if you accelerate...
  12. E

    Qulbix Q140MD - any experience?

    benjamin there's a huge difference between what you rode and what I did. Your journey was a moderate LONG incline at full speed mostly where the motor is the most efficient.The motor had a lot of time to dissipate the heat. Meanwhile mine was really really steep short one and a really SLOW...
  13. E

    Qulbix Q140MD - any experience?

    Compared to sur ron the heat dissipation of the qulbix is pretty bad.Or let's just say HUB motors in general. I tortured the sur ron where the q140md overheated 4 times. After that the sur ron motor was just warm to the touch.Sur ron had the stock 42T chainring so max speed is ~75-80km/h...
  14. E

    Sur-Ron - New Mid drive Bike

    A new one will break as well. So I just simply won't buy another one.(because the dealer in Hungary told me that if something breaks like that that's not under warranty.) We welded it instead. The welder told me that he never seen such a poor quality thin metal in years to hold a rear fender :lol:
  15. E

    Sur-Ron - New Mid drive Bike

    Vibration
  16. E

    Sur-Ron - New Mid drive Bike

    Well this rear mudguard didn't last long. It broke off at 70km/h.. It wasn't a pleasant experience.
  17. E

    Qulbix Q140MD - any experience?

    You can adjust the throttle response and the eco mode in the kelly app. Ask qulbix to send the app to you. BUT by adjusting the throttle response it will be smoother,but you won't have instant max power.I just simply ditched the stock throttle because I couldn't get used to it. It was simply a...
  18. E

    Qulbix Q140MD - any experience?

    Mine is currently unoperational. I bent the rear shock mount axles. I had to cut one with an angle grinder unfortunately.A lot of hard landings with too soft spring.. Regarding the fox 40,it's so much better! It takes hard landings softly. The DNM bottoms out really hard.Stiffness is also...
  19. E

    Qulbix Q140MD - any experience?

    Yeah the 27.5 should be fine. Both the fork and the rear shock has arrived along with the dropper offset crown. Front fork has been installed without any issues.Turning angle is just slightly less. I'll need to re-design the 3d printed CA3 mount.I installed it with the original mount for now.I...
  20. E

    Qulbix Q140MD - any experience?

    Yeah the DNM is good for general use. I destroyed mine this week. It's leaking oil and losing air pressure. :lol: DNM quality..That fox 40 sold out really really fast,about 1-2 people bought one every day.Including me. I'll post some pictures once I installed it.The rear shock is getting...
  21. E

    Qulbix Q140MD - any experience?

    That e-bike fork is probably bit a beefier than a normal one. But it's still not as strong as a FOX40 :)
  22. E

    Qulbix Q140MD - any experience?

    I won't switch to a 27.5 rim. 26" looks ugly already with the 19" rear wheel. There isn't a huge difference. You can use the 26" wheel with the 27.5 fork.And yes I wanna switch the rear shock too. It's not a must tho.. it works pretty well.but not as well as a FOX DHX2 :lol: Because you live in...
  23. E

    Qulbix Q140MD - any experience?

    DVO Emerald has similar crown offset like a FOX 40 Rockshox boxxer test fit. It's not bad at all! The DNM crown has about 29mm offset With a crown offset kit like this the FOX40/Boxxer could have similar turning. https://outsiderbikes.com/products/fox-40-adjustable-offset-crown-kit
  24. E

    Qulbix Q140MD - any experience?

    It will be hard to explain the police what this is without pedals :D. Pedals are shit for sure once you tried the footpegs,but you can get used to it.I destroyed the dnm fork last week,seems like I need a new one :( small bump sensitivity is basically gone even at low speed.The bump must be at...
  25. E

    Qulbix Q140MD - any experience?

    The max speed at full charge is about ~50-53. Once the voltage drops it decreases to about 45. I calibrated it based on GPS speed. You need to do that in the CA if you change the chainring.If you need more speed go with the "mid" one. I sadly can't do that yet because it overheats way quicker.My...
Back
Top