Changing the tire sizes on a motorcycle to 1 or 2 sizes wider can have an impact on the riding dynamics, and it's important to consider the potential consequences before making such modifications. Here are a few factors to keep in mind:
Handling and Steering: Increasing the tire width can affect the handling characteristics of the motorcycle. Wider tires may provide increased stability in certain situations, but they can also result in slower and heavier steering response. The motorcycle's agility and ability to lean into corners can be compromised, potentially impacting the overall riding experience and safety.
Clearance Issues: Installing wider tires can lead to clearance issues, particularly in the motorcycle's fork, swingarm, or fenders. It's essential to ensure that the wider tires have sufficient clearance to avoid interference with other components during suspension travel or when the motorcycle is leaned over.
Suspension and Frame Compatibility: Wider tires can alter the suspension behavior of the motorcycle. The increased tire width can affect the suspension's ability to absorb bumps and maintain proper contact with the road surface. Moreover, the wider tires may not be compatible with the motorcycle's frame geometry, potentially leading to handling issues.
Speedometer and Odometer Accuracy: Changing the tire size can affect the accuracy of the motorcycle's speedometer and odometer readings. The larger tire circumference resulting from wider tires may cause the speedometer to underreport the actual speed and the odometer to show fewer miles traveled than the motorcycle has actually covered.
Legal and Insurance Considerations: Altering the tire sizes beyond the manufacturer's specifications may violate local regulations or void the warranty of the motorcycle. It's important to consult local laws and insurance policies to ensure compliance and maintain coverage.
Given these potential implications, it's generally recommended to stick to the tire sizes recommended by the motorcycle manufacturer. If you're considering a tire size change, it's advisable to consult with a knowledgeable motorcycle mechanic or contact the tire manufacturer for their recommendations. They can provide specific guidance based on your motorcycle model, intended use, and riding preferences to help ensure a safe and suitable tire fitment.