Hello. I bought it. I put it on a tern verg d9. Exactly what I was looking for. I have a question. Does anyone know approximate motor life?now order the b70 battery for spare and long distance.
I'm glad the Qiroll system is working out for you. As for the motor's durability, I understand it's virtually indestructible and should last for years. I actually went over a curb and it hit the motor and left a dent in it and it's still working perfectly. It's about a year now since I got it.
I'm also testing the new Qiroll Pro motor and battery. It is more powerful than the original motor and battery. The battery is slightly bigger and lasts a bit longer and also has the ability to be recharged when used with the Qiroll Pro motor.
But for me the big difference is in the Qiroll Pro motor's increased power. It makes a noticeable difference in speed and power on the level and upward incline riding. It does seem to put added stress on the friction tape though and I've noticed it tends to wear it down but that stabilizes after awhile once it settles into a groove.
Enjoy the Qiroll and many years of assisted pedal bicycling!