top of page

PLUS Aero Wheelsets research is showing wider tyres are the future

  • Writer: Paul Kambouris
    Paul Kambouris
  • Jun 17
  • 2 min read

Updated: Jun 18


Three black bicycle forks with different tire widths: 28mm, 32mm, 34mm. "VS" in between, highlighting comparison. Gray background.

I've seen that the common argument for why wide tyres are faster is because they have lower rolling resistance on a perfectly smooth surface at the same pressure. This seems to me like an incomplete picture because it is faster for basically the same reason that a tyre at higher pressure is faster on a smooth surface, the tyre deforms less. It also comes with exactly the same downside as a tyre at higher pressure, the tyre deforms less over bumps and you have a harsher ride.

My suspicion is that if you increase pressure proportionally with the decreased width, then rolling resistance stays the same and the smoothness of the ride stays pretty much constant as well. i.e. a 23mm tyre at 100psi probably has similar rolling resistance and smoothness of ride as a 30mm tyre at 77psi.

The only advantage I can think of regarding wider tyres is that they allow for the possibility of running them at lower pressures. This is a significant benefit, as lower tyre pressures can enhance the overall ride quality and traction of the vehicle, particularly in off-road or uneven terrain conditions. When a tyre is wider, it has a larger contact patch with the ground, which helps distribute the weight of the vehicle more evenly. This distribution can prevent the tyre from hitting the rim over bumps, a common issue experienced with narrower tyres, especially when faced with rough or rocky surfaces.

Additionally, running wider tyres at lower pressures can improve grip and stability during cornering, as the increased surface area allows for better adherence to the road or trail. This is particularly advantageous in conditions where traction is compromised, such as wet or muddy environments. Furthermore, the ability to lower tyre pressure without the risk of damaging the rim can also lead to improved comfort for passengers, as the tyres can absorb bumps and shocks more effectively, resulting in a smoother ride.

Moreover, wider tyres can also contribute to enhanced handling characteristics. When lower pressures are used, the sidewalls of the tyres can flex more, providing additional feedback to the driver and allowing for more precise control. This is particularly beneficial for performance vehicles or those that are frequently driven in challenging conditions. However, it is essential to note that while there are advantages to wider tyres and lower pressures, there are also considerations regarding fuel efficiency and rolling resistance that should be taken into account.

In summary, the primary advantage of wider tyres is their compatibility with lower pressures, which can improve ride comfort, traction, and handling. This makes them a popular choice for a variety of driving conditions, from casual commuting to serious off-road adventures. The ability to run wider tyres at lower pressures without risking damage to the rim opens up a range of possibilities for enhancing vehicle performance and driver experience.


What are the real advantages of wider tyres on a road bike and are there any articles or studies that take into account all factors, both rolling resistance and smoothness of ride, to justify the recent trend for wider tyres. PLUS Aero Wheelsets would love the feedback from budding enthusiastas to their opionion




Commentaires


bottom of page