Recent content by 3dxl

  1. 3dxl

    REVIEW: QR-E 250W ELECTRIC BOOSTER BICYCLE MOTOR AND B60i AND B70 BATTERY

    Well, have to live up to the jet sound if you wanted to continue using it unless you can send to Qiroll for engineer inspection. I'm sure they can help out.
  2. 3dxl

    REVIEW: QR-E 250W ELECTRIC BOOSTER BICYCLE MOTOR AND B60i AND B70 BATTERY

    For the MAX (400W) 13km x 2 way should be no problem. Hefty amount of power left inside H70 battery. I put my 400W (MAX) on my folding bike just to scoot around the town with zero pedaling. I don't put the Qiroll original friction tape..that tape fail me. I use 3M grip floor tape as...
  3. 3dxl

    REVIEW: QR-E 250W ELECTRIC BOOSTER BICYCLE MOTOR AND B60i AND B70 BATTERY

    I got there test demo version before they called it MAX, i did some comparison back several page in this very thread forum. It consume more power and good torque when climbing hills. Its a good unit but i don't like the size and weight. Just heavy and wider than Pro. Good use on heavy duty bike.
  4. 3dxl

    REVIEW: QR-E 250W ELECTRIC BOOSTER BICYCLE MOTOR AND B60i AND B70 BATTERY

    That Pro with whining sound i knew very well happened on my Merida (white bike), is it continuous? Mine like that, sound like jet turbine engine when throttle. I suspect the clutch mechanism inside making some scratches or something. Happened twice on same Pro unit. My other Pro so far was...
  5. 3dxl

    REVIEW: QR-E 250W ELECTRIC BOOSTER BICYCLE MOTOR AND B60i AND B70 BATTERY

    Clicking noise? Is it happened on Mute or Pro unit?
  6. 3dxl

    REVIEW: QR-E 250W ELECTRIC BOOSTER BICYCLE MOTOR AND B60i AND B70 BATTERY

    Evening, it started to rain... Video:
  7. 3dxl

    REVIEW: QR-E 250W ELECTRIC BOOSTER BICYCLE MOTOR AND B60i AND B70 BATTERY

    Morning power! my usual morning routine ride to work on Qiroll. Video:
  8. 3dxl

    REVIEW: QR-E 250W ELECTRIC BOOSTER BICYCLE MOTOR AND B60i AND B70 BATTERY

    This sticker is very useful if you traveling on board planes because they need to know battery ratings capacity before allowed on board.
  9. 3dxl

    REVIEW: QR-E 250W ELECTRIC BOOSTER BICYCLE MOTOR AND B60i AND B70 BATTERY

    Without the friction tape you'll lost lots of torque..you may not feel it but it slips a lot even when dry but super worse on wet roads like 0 torque. I ditch the stock Qiroll friction tape 4 years ago and go for 3M flooring friction tape (those looked like sandpaper surface) gave me powerful...
  10. 3dxl

    REVIEW: QR-E 250W ELECTRIC BOOSTER BICYCLE MOTOR AND B60i AND B70 BATTERY

    New battery tested, felt like super human again. Gonna order 2nd one so i could daily rotate its usage.
  11. 3dxl

    REVIEW: QR-E 250W ELECTRIC BOOSTER BICYCLE MOTOR AND B60i AND B70 BATTERY

    New Qiroll H70 battery arrived! Finally i need to replace my 4 year old H70 battery..nothing wrong still works but sag 2 LED blue bars (voltage sagging) when i ride just doesn't have that "OOmmpphh!" power like it used to recently this month. However consider this old battery have been survive...
  12. 3dxl

    REVIEW: QR-E 250W ELECTRIC BOOSTER BICYCLE MOTOR AND B60i AND B70 BATTERY

    I did manage to remove three screws but all i got was a an enclosed metal cylinder and 3x wires connected. I still dumb founded on how to open the cylinder motor as i don't see any screw enclose it. This is on PRO model. I knew the motor inside is still spinning when i stop the bike/ brake...
  13. 3dxl

    REVIEW: QR-E 250W ELECTRIC BOOSTER BICYCLE MOTOR AND B60i AND B70 BATTERY

    Another bike with Qiroll Pro (latest version) still alive after daily abuse on all weather. However it started to sound like turbine jet like the first one if i keep boosting/throttle up. I suspect the inner clutch was loose or grinding along.
  14. 3dxl

    REVIEW: QR-E 250W ELECTRIC BOOSTER BICYCLE MOTOR AND B60i AND B70 BATTERY

    My Qiroll Pro still powering good on my bike in 2026 during daily commute. No problem. Battery still runs well since my first post. Anyone still rocking Qiroll? Video:
  15. 3dxl

    REVIEW: QR-E 250W ELECTRIC BOOSTER BICYCLE MOTOR AND B60i AND B70 BATTERY

    Good to hear you enjoyed the Mute version, i have to agree Qiroll should put the LED indicator status on the controller so we could see visually see and know which modes we're riding in. Sometimes i accidentally press the regen brake/mode button and didn't realized it slowed down on fast...
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