middle motor electric bike

[gbsbikes]

How is the middle motor electric bikes works in the future ?

 

[trex]

I like the bike very much.
Whose motor is it?

How is the middle motor electric bikes works in the future ?

The market seems to move to lightweight bikes, sub 20 kgs.
The biggest problem for crank driven mid motors is the power to weight ratio.
The gearbox is made of steel, heavy. If it's made in plastic, it can compete well with hub motors.

 

[Cyclezee]

I like the bike very much.
Whose motor is it?

The market seems to move to lightweight bikes, sub 20 kgs.
The biggest problem for crank driven mid motors is the power to weight ratio.
The gearbox is made of steel, heavy. If it's made in plastic, it can compete well with hub motors.

It's time we saw engineering ceramics used for transmissions, bearings and other parts to help reduce weight.

 

[gbsbikes]

I like the bike very much.
Whose motor is it?

The market seems to move to lightweight bikes, sub 20 kgs.
The biggest problem for crank driven mid motors is the power to weight ratio.
The gearbox is made of steel, heavy. If it's made in plastic, it can compete well with hub motors.

Dear Trex,this is motor brand is Achive brand. whole bike weight is 23.65kg.
And the gear of the motor is steel,although is heavier than plastic ones,but can use more longer time than the plastic ones,so also have advantage to compare together.Thanks

 

[gbsbikes]

It's time we saw engineering ceramics used for transmissions, bearings and other parts to help reduce weight.

Dear Cyclezee,you are right. I will discuss with middle motor factory,and to find way if can cut down the weight. But we also need to consider about if the market can accept high price of middle motor ebikes,if yes,then we can find out way to cut down the weight to 20kg.

 

[gbsbikes]

another middle motor electric city bike.

 

[trex]

nicely done!
can you give us the weight of this bike?

 

[gbsbikes]

Dear Trex,the weight of the bike is 26.5kg. thanks
catherine

 

[gbsbikes]

Can you show the pictures ? I think external controller is ugly on the ebikes.
Or you want to use for the kits to change the bike to electric bikes ?
Follows are the middle motor can make this work. Conversion kits

 

[trex]

yes, that's the same sort of motor.
Is your bike fitted with the Shuangye motor? it's very good looking.

 

[gbsbikes]

Dear Trex,Shuangye is a battery factory in China,they donot make motors,we are ebikes factory in China since 2003s,so if any motor that you want to put on the ebikes,then can customized for you. So can you show me the pictures ?
Thanks

catherine

Global Sea Vehicle Co., Ltd.
Email:kate@gbsbike.com
Tel:+86 18664702878
Skype: catherine199109
Website: www.gbsbike.com