It will help us understand how they work.


With your bike you can get more fancy with details and how it's build, but for the sake of understanding how bikes work, I will keep it simple.

Remember to keep the tire pressure at its max. It will improve its performance.

You can use any engine, but for this tutorial, I will use the V2

Remember to adjust your engine's gear ratio. We don't want a moped that can go 700 km/h.

What do the flaps do in the motorbike?
They work as dampeners for the stabilization system and allow the bike to turn by letting it to move only forward and not sideways.

Flaps should be somewhere in the center of your vehicle.
(More about the flap placement later in this guide)


You can add anywhere from 10 to 20 flaps. The more the flaps and the higher they are, the more stable the bike will be at higher speeds. (More about flaps later)

It's really important to set the axles' setting correctly.
Here's what I normally set them to:

Also, if you would want to make your bike turn tighter, you can just increase the steering angle on the rear axle.

Sensor's job is to keep the bike balanced.
Changing its value will allow you to customize the handling of your bike.


I put the sensor on an actuator to allow the bike to lean into the turns at lower speeds.


This helps the bike take turns and makes it all smoother.
This is not required for the bike to work, so you can skip this step if you want.

Keep the actuator setting somewhere around 4° and 12°.
The right setting all depends on how the bike rides, so experiment and find the one you like the best.

0.4 will give the bike smooth handling, as 0.6 will give you a more responsive ride.

You can download the pre-made sensor here:
https://steamproxy.net/sharedfiles/filedetails/?id=2179354581

The lower the number will be, the more aggressive the stabilization will get. Higher numbers will give you less sensitive stabilization.



Now, you need to set your front axle's steering input value and sensor's output value to the same number (other than 0) for them to communicate with each other.

• If your bike will drive mostly in the city, then you should be alright with numbers anywhere from 90 to 140.
• But if you'll race with your bike and it will reach really high speeds, then the right numbers for you will start from 120 and maybe reach even up to 300.

Normally you can't always say which number will be perfect for you.
That's why you need to experiment with different values and find yourself the right one.

Your bike will stabilize itself while it's in motion, but when it's static, it will need some extra help from falling over.
That's what kickstands are best for.

But there are many kinds of kickstands you can make!



Get creative!

That is all you need to know on how to create a simple, working motorcycle.

You can download this one here:
https://steamproxy.net/sharedfiles/filedetails/?id=2180294750

But first, what are speed wobbles?



Speed wobbles are when the bike wobbles from side to side at high speeds.
It does so because the sensor, that stabilizes the bike, is too sensitive for such a high speed and overcorrects the bike endlessly.

Speed wobbles also appear more often with FPS is low (<45FPS).

There are 2 ways to do it. (And are most effective when used together)
Either you increase the number of flaps or you make the sensor less sensitive. Let's talk about both of them.

I've talked about setting up the sensor correctly before.

If you're experiencing speed wobbles at higher speeds then you might want to increase the value on your sensor to make it less sensitive.
Although the downside will be that the bike won't stabilize itself as much as it should at lower speeds and it might flip easier while cornering.

And that's where increasing amount of flaps might be helpfull!

Flaps dampen the side-to-side movement (speed wobble) but they can't make it disappear completely just by themselves.
The more flaps you add, the smaller speed wobble will be.

6 flaps

vs
15 Flaps:


I normally add flaps instead of making the sensor looser to make the bike both stable at high speeds and to make it aggressive enough for low speeds.

Altought you might find yourself having up to around 20 flaps and still speed wobbles. This is the moment where you should stop adding flaps and just make the sensor less sensitive.

- Too aggressive sensor
- Too high speed of the bike
- Low FPS
- Not enough flaps (that can be done by making the sensor less sensitive but I'll add it anyway)
(Example, 6 flaps but sensor set to 180 instead of 90):

The placement of your flaps inside the bike is very important. It will decide on how your bike will handle turns.

Below I've done an experiment to check how quickly will a bike do a 90° turn with flaps in the rear vs in the front of it.
(Things said above may not be 100% true but will help you understand the whole subject)

For example:

Will cause the bike to tilt a lot while turning but they will also help reduce your speed and turn tighter.
But there's a higher chance that your bike will fall over while turning too hard.

Will make the bike turn while being titled less.
So if your bike falls over a lot in turns, you should move your flaps foward.

Here's a short run through on how to mount helmets on bikes:









Change the angle of the actuator that moves the helmet if needed.


Helmets to download:
https://steamproxy.net/sharedfiles/filedetails/?id=2189965826

I have been creating this guide for more than 3 weeks now and I just want to thank everyone that have been helping me with this project.

By creating this guide I want help people create their own bikes.
I still don't understand motorcycles in 100% but I hope I could help someone.
It has been a rough journey for me to get a hang of all of this information and I hope that all of my work was worth it.

Collection of bikes that I have made:
https://steamproxy.net/sharedfiles/filedetails/?id=2063974930

Thanks to people that checked and helped me with this guide before publishing:
MagmaXZX
Doomeriox (Herr Kr00pnik)
Crom
Saturn
Omatsu
SMN

(Guide updated 05/02/2021 - DD/MM/YYYY)

Does your bike have any problems? Don't hesitate to comment and let me know! I check the comment section often and I'll be happy to help.