In this video, the rider tracks along a milled edge and is down in seconds.
Why?
Motorcycles rely on balance and continuous micro adjustments.
A longitudinal ridge can create a self steering effect.
The tyre follows the groove.
The rider loses lateral control.
Riders have limited ability to manage lateral instability at speed, and they do not have four contact patches to provide redundancy.
In our Making Roads Motorcycle Friendly course, we unpack:
- Milling practices and acceptable level tolerances when we think about motorcyclists and their safety rather than just four wheeled vehicles.
- Temporary surfacing and edge treatment. How to leave this in a safe way for all road users.
- Work zone layouts that avoid longitudinal hazards.
This is not about blaming the rider. It is about understanding how geometry, surface condition and temporary traffic management interact with an inherently unstable vehicle.
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