Recent content by kin27779

Obviously you have me mistaken on technical reach, demand, and ultimate goal orientation. Just like you, I was stuck at these battery demand capabilities until I freed my mind looking much forward as to technology that will soon be replacing standard lithium ion batteries with solid state...

As a reference point, the niu mavericks n1s scooter uses a 29ah life (LG or panasonic cells) 60v battery (which weighs 10kg) and 2000w bosch hub motor and has a range of 80km's. This setup also uses a regenerative controller. This might be helpful to know in doing your calculations...

Not to sound like a smart ass but why didn't brammo do or think of that? They have had a lot of success selling bikes with trannys mounted to electric motors. gearboxes Do add lower gearing for take off, not a big deal since most electric motors have monster torque. But what a lot of electric...

If you installed a jackshaft that would result in a bigger power loss and if geared low only result in a higher take off. The point of a 6 speed tranny as with the brammo bike is to get maximum take off speed/ acceleration with low gearing and maximum top speed with high gearing, a high top...

Otherwise its not much different from a hub motor, being single speed. The advantage to locating the motor outside of the wheel is the ability to add a gearbox, just saying.

Cool but its missing a key feature that could be easily integrated and make that 2000w motor feel much more powerful. It should have an oil filled integrated 6 speed gearbox just like the brammo electric bike. With gears the thing would be perfect.

Please let me know how it goes, as I am interested in this same setup and living in China currently where there are many 1000w qs motors on scooters here. I own the 1000w qs motor and it goes 66kph when fitted with an extra big tall 10 inch tire. I would like to upgrade my current motor to the...

At this time there is not a good source of jnfo in English for these. I can give you some more information through my own research and translation. There are 5 models. The lowest model has a 400w motor and a lower range battery. The pro model has a 1200w motor and a 120km range battery. Each...

I like everything about it except one thing. To be legal in china the top speed is limited to 45kph. I feel the bosch motors are of extreme quality and I bet a controller could push way more amps through this bosch motor. I am considering to export this model to the states with a controller that...

To reply to some of the questions and responses I just wanted to give my own personal experience. I have owned a real gas powered honda grom in Taiwan. The Chain and gears needed to be changed at about 14,000 km's. I have also owned some yamaha belt driven scooters such as the bws 125cc. It...

I was thinking to get the Motenergy ME1003 PMDC Motor, 12-72V, 15.4 hp cont, 30.8 hp pk At about 30Hp, I think I could hit my goal of 150kph. It looks like it will fit in the honda grom clone. here is a picture of it in a bigger bike. Do you think it can fit...

http://www.baopals.com/products/528426539518 I like this new concept. I feel the motor is a bit low powered (1200w) but the add claims 85kph top speed. I think that with this set up it should be fairly easy to modify it by swapping in a better motor/ controller. I wanted to see if anyone had...