The drive chain transfers power from the engine to the rear wheel, making it a critical component. A poorly maintained chain can reduce performance, damage sprockets, or even break, causing accidents. This article explains how to maintain and adjust your motorcycle’s chain for reliability.
Cleaning the Chain
Dirt and grime on the chain increase wear and reduce efficiency. Clean the chain every 500 miles or after riding in wet or dusty conditions. Use a chain-specific cleaner and a soft brush to remove debris. Avoid high-pressure washers, which can damage O-rings in sealed chains.
Lubricating the Chain
Lubrication reduces friction and extends chain life. Apply chain lube after cleaning, ensuring the chain is dry. Rotate the rear wheel to spread the lube evenly, focusing on the inner side of the chain. Wipe off excess lube to prevent attracting dirt. Lubricate every 300–500 miles.
Checking Chain Tension
Incorrect chain tension can cause premature wear or handling issues. Check tension every 500 miles. Measure the chain’s slack (the up-and-down movement) midway between the sprockets. Most motorcycles require 20–30mm of slack; refer to your manual. Adjust by loosening the rear axle and turning the adjuster bolts evenly.
Inspecting Sprockets
Worn sprockets accelerate chain wear. Check sprocket teeth for hooking or asymmetry every 1,000 miles. If teeth are worn, replace both sprockets and the chain as a set to ensure compatibility. Misaligned sprockets cause uneven wear, so verify alignment during inspection.
Replacing the Chain
Chains typically last 15,000–20,000 miles with proper care. Signs of a worn chain include excessive slack, kinks, or rust. Use a chain breaker tool to remove the old chain and install a new one, ensuring the correct length. Rivet or clip the master link securely.
Regular Checks for Safety
A well-maintained chain improves performance and safety. Keep a maintenance schedule and inspect the chain before long rides. If you’re unsure about adjustments or replacements, consult a professional mechanic to avoid errors.