A motorcycle's rear tire can wear unevenly on one side due to several factors. Here are some common reasons:
Incorrect tire pressure: Improper tire pressure can lead to uneven wear. If the tire is underinflated, the outer edges of the tire tend to wear more quickly. Conversely, if the tire is overinflated, the center portion may wear faster. Maintaining the recommended tire pressure is crucial to ensure even wear.
Improper wheel alignment: Misaligned wheels can cause uneven tire wear. If the rear wheel is not aligned correctly with the front wheel, it can lead to a side-to-side scrubbing motion as you ride, causing the tire to wear unevenly.
Riding style: Aggressive riding habits, such as hard acceleration, abrupt braking, or taking corners too aggressively, can cause the rear tire to wear unevenly. Consistently putting excessive stress on one side of the tire can accelerate wear on that particular side.
Road camber: Roads are often built with a slight camber for drainage purposes, sloping from the center toward the sides. When riding along roads with a pronounced camber, the motorcycle may lean slightly to one side, causing the rear tire to bear more weight on that side and resulting in uneven wear over time.
Suspension issues: Problems with the motorcycle's suspension system, such as worn-out or misadjusted shocks or springs, can lead to uneven tire wear. If the suspension is not properly absorbing bumps and maintaining a balanced load on the tire, it can cause excessive wear on one side.
To prevent uneven tire wear, it's essential to maintain proper tire pressure, regularly inspect and align the wheels, ride smoothly without excessive stress on one side, and address any suspension issues promptly. Regular tire maintenance, such as rotating the tires and checking for signs of wear, can also help identify and address any uneven wear patterns early on. If you notice significant and persistent uneven tire wear, it's recommended to have your motorcycle inspected by a professional mechanic for further evaluation.