Making an economic electric bike

[plasmanu]

It's exactly that.
So I would like to know the procedure in the prefecture to obtain the sesame (this famous green card).
Ironically, it is impossible to go to the registration office of the famous prefecture because it has been closed to the public for years.
For your question: it is CE and RoHS on all motors, controller and battery.
When I do Trial or Cross, no wild boar has yet filed a complaint.
And let's not forget that any racing muscle bike runs smoothly at a minimum of 40km/h: it must be banned quickly, put in spyware, throw nails, a tax...

[izentrop]

It's exactly that.
So I would like to know the procedure in the prefecture to obtain the sesame (this famous green card).

I don't know, but having your bikes approved to be allowed to ride on the road at 45 km/h max may cost you more than buying a "moped" approved bike directly. https://www.haibike.com/fr/fr/services- ... bligatoire.

[plasmanu]

An VAE must have 250W maximum.
Maximum assistance speed 25km/h, muscular beyond.
Only a pedal sensor, no trigger or thumb accelerator.
A battery storing a maximum of 500Wh.
I have a Matra electric scooter with a 400W rear wheel motor and a large lithium battery under the saddle. It's heavy and inefficient.
https://www.purerider.fr/actualites/mot ... 20125%20cc.
"The engine power of an electric motorcycle:
Engine power helps determine the performance of the motorcycle. There are two categories: 50 cc and 125 cc. The 50 cc models are mopeds accessible from 14 years old thanks to obtaining the BSR. They develop a power of 2 W, which is equivalent to a maximum speed of 200 km/h. The 45 cc models are lightweight motorcycles. They are accessible with a B license and 125 hours of training. Their power is 7 W, so they can reach a speed of 5 km/h."

[plasmanu]

"A source of pride for the Kazakh who sees his idea become almost a reality. His car weighs 11 kilos and develops a power of 5.000 watts. Enough to reach a top speed of 130 km/h in a straight line, on curves less sinuous than that of the Principality: "In Monaco, in the tunnel we reached 91 km/h."
https://rmcsport.bfmtv.com/amp/cyclisme ... 40643.html
This is exactly what you need to walk around here for 45 minutes

[plasmanu]

72,5 km/h empty. Where will it end!!!
And it's quite discreet.
We can't stop progress: 73... to be continued

[izentrop]

25 km/h is enough for me, again this morning to get to the “repair café” in the neighboring town.

I tinker quite a bit but on this occasion I chose the ready-made one because it's not easy to make the insurance work in the event of a problem with a kit, even if it doesn't exceed 250 W or 25 km/h https://www.quechoisir.org/decryptage-v ... lo-n80827/

[plasmanu]

Excellent, and in Sunday dress.
250W is an excellent power-to-weight compromise.
It requires a modest battery which is a definite advantage.
I have 3 aluminum eBikes mounted in 700C and 3 steel frame eBikes in 26".
It's not the same at all.
The 26" steels deliver maximum power without thinking with a basic crank sensor while the aluminum ones are lighter, have a much more efficient rolling part and instead use a torque sensor on the crankset. This is better battery management and in the end the autonomy is almost double with the same battery.
On the other hand, price level is 2200€ to 4300€ for aluminum.
While steels are between €1200 and €1800.
The 4300€ came to me at 250€ 1000kms on the clock.
The 2200€ cost me 70€ around 5000kms
The 1800€ cost me 50€ zero kilometers
The 1400€ cost me 100€ 400kms

[Christophe]

When empty, I blocked the LCD meter (the same as you) on one of mine: 99 km/h...

But shush otherwise Izy will throw us away!

[plasmanu]

Quite possible.
I have a max speed limiter in the controller but no power limit.
Some 1500W motors can only run at full speed for 5 minutes continuously. Not mine, but after a critical temperature it cuts off.
For izy I have an average speed of 26km/h. I'm almost in the nails.

I'm almost done with my carbon.
The rear wheel purchased on Leboncoin for €50 for 12mm thru axle is a marvel.
It was marked 27,5" wheel.
In reality it's a 700c Gravel racing bike carbon wheel with the freewheel (cassette), the disc, the new tubeless tire and the transport bag: the deal of the century.
Looking forward to the front engine

[Christophe]

Quite possible.
I have a max speed limiter in the controller but no power limit.
Some 1500W motors can only run at full speed for 5 minutes continuously. Not mine, but after a critical temperature it cuts off.
For izy I have an average speed of 26km/h. I'm almost in the nails.

To test it I ran mine, fully but empty, for around 15 hours...

In short I did a little over 1500 km...empty

Since then I have done a little less than 1000 km without empty with...

I'm talking about this one: electric-transport / mountain-bike-decathlon-electric-rockrider-3d-printed-battery-box-t16832.html

Your carbon will seriously fly!! Consider making us a video of the performances!