How to create a Motorcycle Controller

Vehicle First Steps

1- Place motorcycle model in the scene, set layer of car to Vehicle(8) and Unpack Prefab

2- Add Colliders and Rigidbody (set a high value for the mass of the vehicle, like 100)

3- Create Wheel Colliders for each wheel model

4- Add Motorcycle Controller component and assign wheel models and wheel colliders in same sequence:

5- Assign Steering Wheel

6- Set the Center of Mass

7- Create a vehicle enter trigger

8- Create and assign Inverse Kinematic Target Positions

The above steps are the same as the car setup, see the page for more details

Tip: if you place the center of mass at the height of the wheels and further back, as in the image above, you will get good results

Motorcycle Parameters

Motorbike physics has some unique parameters:

Wheels	Description
Max Steer Angle	The max wheel steer angle
Throttle intensity	Wheel acceleration influence by the engine.
Brake Intensity	The brake force intensity influence by the engine settings.
Wheel Collider	The wheel collider.
Wheel mesh	The wheel model.

Inclination	Description
Sensitive	The sensitive to start lean on curves.
Speed	The speed to lean the motorcycle in curves.
Max Angle	Maximum angle the motorcycle can lean in motion.
Stopped Inclination	The angle of the wheel when stopped, used to simulate the driver's feet on ground.
On Grounded Drag	Motorcycle drag when on ground.
Off Ground Drag	Motorcycle drag when not grounded.

Loop	Description
Enable Looping	Enable loop system
Loop Tag	Loop tag. ⚠ when the bike passes through an object with this tag the motorcycle lean system will be turned off to complete the loop correctly
Align With Loop Speed	The speed to align the Up with the loop normal.

Overturn Check is the same for any vehicle.

Motorcycle Suspension

Up to this point the bike will be working normally, however it is interesting to use a suspension script:

Result