While it might seem beneficial to fit all bikes with bigger wheels, there are several factors that limit the universal adoption of larger wheels. Here are a few reasons why all bikes can't be fitted with bigger wheels:
Frame Design and Geometry: Bicycles are designed with specific frame geometries to optimize handling, stability, and performance. The frame must be compatible with the size of the wheels to maintain the intended ride characteristics. Changing the wheel size without modifying the frame design can lead to imbalances in weight distribution, compromised handling, and reduced overall performance.
Clearance and Fit: Larger wheels require additional clearance within the frame, fork, and brake systems. Bikes with limited space may not be able to accommodate bigger wheels without extensive modifications. It's important to maintain proper tire clearance to avoid interference with the frame, brakes, and other components.
Weight and Rotational Mass: Bigger wheels and tires can increase the overall weight of the bike. This additional weight affects acceleration, maneuverability, and overall performance. Moreover, larger wheels have greater rotational mass, making it harder to accelerate and decelerate the bike quickly.
Handling and Agility: Different wheel sizes impact the handling characteristics of a bike. Smaller wheels provide nimbleness and agility, which can be advantageous for certain riding styles, such as in tight corners or technical terrain. Larger wheels, on the other hand, offer better stability and roll over obstacles more easily. The choice of wheel size depends on the intended use and desired handling characteristics of the bike.
Compatibility with Components: Bikes are designed with specific components, such as forks, brakes, and drivetrains, that are optimized for certain wheel sizes. Changing the wheel size may require modifications or replacements of these components to maintain compatibility and functionality.
It's worth noting that different types of bicycles are specifically engineered for different wheel sizes to meet the specific needs of various riding styles, terrains, and performance goals. Therefore, while larger wheels may be suitable for certain types of bikes, it is not a universal solution for all bicycles due to the aforementioned factors.