How To Adjust Chain Slack On Motorcycle

Tightening the slack in a motorcycle chain is a crucial aspect of maintenance that must be conducted on a regular basis. When the chain is adjusted correctly, it guarantees the motorcycle operates seamlessly, minimizes the rate of wear and tear, and wards off possible harm to the parts of the bike. This piece will walk you through the steps needed to adjust the slack in your motorcycle’s chain.


Before attempting to adjust chain slack, it is important to prepare yourself and your motorcycle. Make sure the bike is clean and free from any dirt or debris that may interfere with the adjustment process. Additionally, ensure that you have the necessary tools at hand, such as a chain tensioner tool, a torque wrench, and a socket set.

Measuring Chain Slack

The first step in adjusting chain slack is to measure the current slack. Park your motorcycle on a flat surface and engage the rear brake. Use a ruler or tape measure to determine the distance between the bottom of the swingarm and the center of the chain at its loosest point. This measurement should be taken with the bike in neutral gear.

Adjusting Chain Slack

Once you have measured the current slack, it’s time to adjust it to the recommended specification for your motorcycle model. Consult your owner’s manual or manufacturer’s website for the specific chain slack measurement required. To adjust the slack, use a chain tensioner tool to loosen or tighten the chain as needed.

Torquing Fasteners

After adjusting the chain slack, it is crucial to properly torque all fasteners involved in the process. Use a torque wrench to ensure that all bolts and nuts are tightened to the manufacturer’s recommended torque specifications. This will help prevent any potential damage or looseness that may occur during riding.

Test Ride

Once you have completed the adjustment process, take your motorcycle for a test ride to ensure that the chain slack is properly set. Pay attention to any unusual noises or vibrations that may indicate an issue with the chain tension. If everything feels smooth and comfortable, you can be confident that your chain slack has been successfully adjusted.


Adjusting chain slack on a motorcycle is a simple yet essential maintenance task. By following the steps outlined in this article, you can ensure that your bike’s chain is properly tensioned and functioning optimally. Regularly checking and adjusting chain slack will not only improve the overall performance of your motorcycle but also extend its lifespan.