Is Wider REALLY Faster? with GCN
Source: GCN Youtube Channel: Is Wider REALLY Faster?
Video Is Wider REALLY Faster? with Global Cycling Network
Video Is Wider REALLY Faster? with Global Cycling Network YouTube Channel.
Is Wider REALLY Faster?
Title: The Truth About Wide Tires on Road Bikes: A GCN Experiment
In the cycling world, there has been a recent trend towards wider tires on road bikes. The belief is that wider tires offer lower rolling resistance at a given pressure, making them faster, especially on rough surfaces. However, is there a downside to running wider tires on smooth road surfaces? In a groundbreaking experiment conducted by Global Cycling Network (GCN), this question was put to the test.
The Experiment Setup
To conduct the experiment, three pairs of Pirelli P Zero race tires were fitted onto three pairs of Elite Wheels Drive 50s. The only difference between the tires was their width: 26mm, 30mm, and 35mm. The test took place on a dedicated cycling track with smooth surface conditions. The goal was to determine whether wider tires, typically seen as faster on rough surfaces, would offer any advantage on a smooth road.
The Tire Pressure Dilemma
One might argue that to conduct a fair test, all tires should be set at the same pressure. However, wider tires are typically run at lower pressures for enhanced comfort and vibration absorption. In the real world, cyclists opt for wider tires precisely for this reason. Thus, the experiment aimed to mimic real-world conditions by setting each tire to its optimal pressure for comfort and performance.
The Test Protocol
Riders logged laps on the track at 100 watts, 200 watts, and 300 watts to observe any variations in speed between the different tire widths. The body position on the bike, clothing, and other variables were kept constant to ensure accurate data collection. Additionally, the test was concluded by repeating the initial laps to serve as a control. Weather conditions were monitored throughout the day using GCN’s weather station to account for any external factors.
The 26mm Tire Experience
The 26mm tires, which actually measured up to 28mm, provided a smooth and familiar ride on the track’s surface. Riding at different wattages felt natural and consistent, showcasing the versatility and comfort of wider tires, even on well-maintained roads. The narrower profile of the tires did not hinder performance, challenging the preconceived notion that wider tires are slower on smooth surfaces.
The 35mm Tire Experience
Transitioning from the 26mm to the 35mm tires revealed a noticeable change in handling due to the wider contact patch and pneumatic trail. The 35mm tires altered the steering characteristics of the bike, especially in crosswinds, highlighting the impact of tire width on bike stability. Despite initial concerns, the 35mm tires did not show a significant decrease in speed compared to the narrower options, defying expectations.
The Results
After completing the laps at varying power outputs, the results of the experiment were surprising. The differences in speed between the 26mm, 30mm, and 35mm tires were negligible, with the 35mm tires showing a slight advantage at higher wattages. This unexpected outcome challenged the common belief that narrower tires are inherently faster on smooth surfaces. The experiment proved that wider tires can offer comparable speed and performance, even on ideal road conditions.
Conclusion: Embracing Wider Tires
The GCN experiment highlighted the misconceptions surrounding wider tires on road bikes. While traditional wisdom dictates that narrow tires are faster on smooth surfaces, the data showcased the equal performance of wider tires. Whether riding on rough or smooth roads, wider tires can provide enhanced comfort, stability, and speed, challenging cyclists to reconsider their tire choices. As the cycling industry shifts towards wider tire options, riders are encouraged to explore the benefits of embracing this trend for improved performance and overall riding experience.
In summary, the experiment conducted by GCN debunked the myth that wider tires are slower on smooth road surfaces, emphasizing the importance of comfort and performance in tire selection. As the cycling community continues to evolve, embracing wider tires may offer a competitive edge and enhance the overall riding experience for cyclists of all levels.
The opinions expressed in this space are the sole responsibility of the YouTube Channel Global Cycling Network and do not necessarily represent the views of Bicycles4ever Cycling Culture.
