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I wouldn't recommend voltage regulator unless you know the peak amp (A) current consumption required between the battery and drive unit. Else i would love to use back my 52V 17Ah bafang battery pack on my Qiroll unit. You'll need to contact with Qiroll support, they have engineers on how to...

On my H70 battery pack with continuous pressing the throttle/boost button on my way to office + mild pedaling + half km 20% gradient hill climb + 14km (8.6 miles) trip = consumed 2/4 blue bar on the battery. Means 50% of the battery pack consumed for that mentioned trip. Better to have 2x...

Oh yeah, my fast white stallion (Qiroll Pro) still doing well everyday on the road.

Hi, Sorry for not being here in this forum. Btw for hills PRO is a winner, but you'll have to ditch the manufacturer friction tape and go for those DIY mods using 3M industrial floor grip tape on the friction drive roller else you will loose around 30% torque power slipping all the going way up...

It should fit on Birdy MK2 below rear stay behind the tires, i can see lots of ample space to mount there so no problem. As for assist mode either both ECO and SPORT; if you clutch the friction roller on the rubber tires lightly according to installation manual you can easily pedal without much...

It should work as long the qiroll friction roller have ample space and clamp area to mount behind rubber tires. Mounting on odd frame structure requires some DIY.

Extra grip power! I realized another advantages of friction roller; it helps warm up the tires and allow good grip and traction on the road. Via FLIR thermal imaging i can see the temperature increase around the radial. The same method where i warm up my RC car tyre to prep up for racing around...

Enjoying daily chase! Video: https://x.com/SupermotoXL/status/1821711837735612904

Review article: QIROLL Q-RE PRO - 320W E-bike Finally published a written review about my experience with QR-E PRO. For those who wants to read in details can visit my webpage here: https://www.supermotoxl.com/projects-articles/news-reviews/tech-review-qiroll-q-re-pro-320w-e-bike-kit.html...

Its a single aluminum attachment on the motor from the plate, not magnesium material i think. Then definitely mid drive for you where you live, i think instead of selling off the Qiroll you can try do creative stuff like using it on skateboard or push scooter modification into electric. I'm...

QIROLL 320W QR-E PRO SETUP VIDEO. Just published video how i setup my 320W QIROLL QR-E PRO, test and rides. Enjoy! Video: .

Front wheel drive provide good off-road traction and stability, surprise you have huge amount of front for clearance to fit rear the fork. I can't comment that, but i won't able to have leverage of time to stop and spray some dogs. Speed is my safe option. Btw encountering rabid dog, mouth...

Yay! My white stallion is back on the road! Zooommmm away! The PRO (V2) seem to perform well like the V1 on the first day today. Need a week to run-in/break-in the motor before i can see some optimal performance. Still, today was a fun exhilarating ride! Thank Qiroll for the replacement unit...

Updates: Wow! Received complete new replacement! Finally i received the replacement unit to replace my old QR-E PRO (V1). They sent me a new V2 unit, a complete kit! Now that's an awesome product support for customer right there Thanks to Qiroll and Mr. Jason for keeping their customer happy...

Where i live 250~650w still not enough to leverage my daily commute and that hill stuff i have to deal with, i need more power to match the flow of traffic. However for chill and relaxing scenic ride like yours that is good enough. 44.2miles with 500wh is really good mileage including under...

Beautiful scenic trails you got there, definitely go mid drive on gravel and some hills. How many watts the Yamaha pull and how many miles before the battery hits low level? Ride easy on the knee and enjoy the scene. My Bafang 750W mid drive have been rebuild and going into some MTB frame but...

Cool tech updates: Qiroll will be releasing cool new features now under testing and development. Will let you guys now soon. 😍 Meanwhile still loving my PRO V2 power everyday. Twitter videos: https://x.com/SupermotoXL/status/1813027166596309343...

Received message from Jason; the delivery for QR-E PRO replacement is delayed.

Extra note; short crank have advantages having fast pedaling rpm and low amount of leg flex angle at every pedaling radius but you'll loose some leverage getting torque pedaling stroke climbing up hill unless you know how to use granny gearing and adequate ebike motor assists. I got all my...

Nice Motobecane bike setup, looks like the bike build for long touring trip. I notice you have very long crank arm, based on my experience it does cause me knee pain...so i have shorten to 152mm crank arm length and got me optimal spin without knee stress. My MTB (Bafang) running at 155mm crank...