Viewing profile — yilunzh

I should clarify that on the bike path, I generally do stay in the 15-20 MPH range, as there are many pedestrians traveling at low speed. On the road however, staying at typical bi…

My bike is around 50 lbs. I weight about 150 lbs. I often carry a bag about 20 lbs. So all in, it's about 200 lbs or ~90KG. I think my battery pack can go about 50 miles per charge…

Yup, the brakes is definitely the limiting factor currently, but other parts of the bike have held up surprisingly well. I didn't really know anything about bikes before starting t…

Yeah, in the US, my understanding is that the regulation is much looser relative to the rest of the world. You can have a maximum of 750W with a top speed of 28 MPH without pedal a…

Thanks harry!

I agree that a PM who simply play the role of a telephone between design, engineering and marketing is indeed useless...though i disagree that PM in general add no value building p…