Rev Up for 2026: Ace the Red Seal Motorcycle Tech Exam – Zoom into Your Future!

When the chain on a motorcycle is too tight, it can indeed cause excessive wear on sprockets and bearings. A chain that is under excessive tension creates unnecessary stress on the transmission components, including the sprockets to which the chain is connected. This stress can lead to premature failure of these components, as the chain cannot move freely and is subjected to higher loads during operation.

Moreover, the extra tension can affect the motorcycle's bearings, particularly in the rear wheel assembly. Bearings are designed to operate within specific tolerances, and over-tightening a chain disrupts that balance, leading to additional friction and wear. Consequently, this can result in mechanical failures that may hinder the motorcycle's performance and safety.

By contrast, the other options present outcomes that do not accurately reflect the reality of a tight chain scenario. Therefore, ensuring proper chain tension is crucial for maintaining the longevity and functionality of the motorcycle's drivetrain components.