Building a 50–60 km/h DIY eBike on $1400 – best hub kit + battery + bike?

Posted by Mental_Pen_2815@reddit | ebikes | View on Reddit | 8 comments

I’ve got about $1400 total and want to build a fast eBike using a conversion kit (AliExpress, Temu, etc.).

Target:

50–60 km/h top speed
Rider \~80 kg
Mainly road use

I’m looking for:

A good donor bike (preferably something that can handle the power)
A reliable conversion kit (hub only)
A solid battery that won’t be sketchy or die quickly

From what I’ve seen, cheap kits are fine but batteries can be risky, so I’m trying not to mess that part up.

Any specific kits, setups, or combinations that actually hit those speeds and stay reliable?

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slipperyjack66@reddit

Right, heres what you want to do. Buy an electric dirt bike/ motorbike, and do whatever your state requires to make it road legal.

60kmh on a bicycle isnt safe for you or other road users.

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Mental_Pen_2815@reddit (OP)

I am not old enough to get a license.

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slipperyjack66@reddit

Then thats the end of that. Either wait until youre old enough or stick to legal speed restrictions.

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InquisitorPinky@reddit

That is not the argument you want to bring.

Also riding an ebike in a place where you need a license without can get you in a lot of trouble.

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I guess fast is relative. 50kph is doable with basically any 1000w hub motor kit and a 56v battery. 60kph you want either a more powerful hub or a mid drive, that lets you use your bikes gearing for higher speeds

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Mental_Pen_2815@reddit (OP)

Is a mid drive better than a hub in this situation?

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start3ch@reddit

It will give you higher top speeds

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Anothercoot@reddit

Anything with discs, bbshd and a bac855 kit.