QiaoNan
10 mW
- Joined
- Aug 5, 2019
- Messages
- 27
For the past few months, the kids in Beijing have been VVVVVVery bored. We decided to make them a lovely e-mtb.
Firstly, some standards need to defined：
1. MUST Be light. (My daughter is only 5 years old，If the bike is too heavy, I'm afraid it's hard to control.)
2. Various sizes of wheel hub (14-20 inch) can be used.
3. Select the low-power hub motor at the beginning.
Later, it can be gradually replaced by high-power motor. :lol:
This is a simple design:（At first, I thought my daughter would like this color.In the end, of course, she chose white.
）
To determine the size, I referred to two of my daughter's bicycles.I estimated the ride height and decided to use 16 inch tires.
Although this frame looks very simple, but still need to design a set of simple fixture.
I want to plug the battery pack between the bike frame. then I need to make a small battery box. Using aluminum alloy plate can ensure that the battery box is not too heavy.Installation and disassembly are also convenient.
Painting、 assembly、 commissioning. finished！！！I need to be very careful when I assemble. safety first.
and It's so important to wear helmets and all kinds of protective.
I tried 3 types of power motors. 250w、350w、800w.
I think 350W is fast. But She seems to like 800W very much.
I decided to let her practice for a while before replacing her 800W motor.
Firstly, some standards need to defined：
1. MUST Be light. (My daughter is only 5 years old，If the bike is too heavy, I'm afraid it's hard to control.)
2. Various sizes of wheel hub (14-20 inch) can be used.
3. Select the low-power hub motor at the beginning.
Later, it can be gradually replaced by high-power motor. :lol:
This is a simple design:（At first, I thought my daughter would like this color.In the end, of course, she chose white.
）To determine the size, I referred to two of my daughter's bicycles.I estimated the ride height and decided to use 16 inch tires.
Although this frame looks very simple, but still need to design a set of simple fixture.
I want to plug the battery pack between the bike frame. then I need to make a small battery box. Using aluminum alloy plate can ensure that the battery box is not too heavy.Installation and disassembly are also convenient.
Painting、 assembly、 commissioning. finished！！！I need to be very careful when I assemble. safety first.
and It's so important to wear helmets and all kinds of protective.I tried 3 types of power motors. 250w、350w、800w.
I think 350W is fast. But She seems to like 800W very much.
I decided to let her practice for a while before replacing her 800W motor.
