Knowing How To Count Motorcycle Chain Links is an essential skill for any rider who maintains their own bike. Whether you are replacing a worn chain, adjusting your final drive ratio, or installing a new sprocket set, an accurate link count ensures you order the correct part length. A miscount can lead to a chain that is too short to install or too long to tension properly, creating a safety hazard. In this ultimate guide, we will walk you through the exact process to get the right count every time.
Understanding Your Motorcycle Chain Link Anatomy
Before you begin counting, it’s critical to understand what constitutes a chain link. A standard motorcycle chain consists of inner links and outer links. However, the common industry standard for measurement is the full pitch. One pitch equals the distance between the centers of three consecutive rivets. In simpler terms, one link (in the context of a chain’s total count) includes one inner plate and one outer plate. This is why you must count the entire pairs of plates, not just individual metal segments.
Step 1: Gather the Right Tools
To perform an accurate count, you will need a few simple items: a clean rag, a marker or piece of chalk, and a well-lit workspace. Some riders prefer calipers for precise measurement, but for counting alone, manual marking is sufficient. Locate the master link or the peened rivet that marks the chain’s joint. Cleaning this area first is crucial to avoid missing a link due to grime.
Keyword: How To Count Motorcycle Chain Links
Step 2: Find the Reference Point
The biggest challenge in How To Count Motorcycle Chain Links is keeping track of where you started. The best method is to place a bright mark on the side plate of a link that sits at the top of the rear sprocket. Using a permanent marker, draw a vertical line across the pin and the plates. This gives you a clear visual stop and start point. Avoid using the master link as your starting point if possible, as master links often have a different visual profile that can confuse your count.
The Pin-By-Pin Counting Method
This is the most reliable method for beginners. Look directly at the pins holding the plates together. Each pin represents the center point of a link. Starting just after your marker, count every pin that you see. If you reach the master link connector, count it once. Keep your finger on each pin and say the number out loud. A standard 520 chain on a sportbike might have 106 to 110 pins. Remember: if you count pins, you count links. If you count only the inner plates, you will get half the correct number.
Option: The Sprocket Tooth Method (Quick Check)
If you are simply verifying a known chain length without removing it, you can use the sprocket as a counting aid. Mark a tooth on the rear sprocket. Rotate the wheel slowly and count how many times a chain pin passes that tooth. Wait until the same pin returns to the same tooth. Multiply the number of chain moves by the teeth count. This will give you a rough estimate. However, this is precise only at exact mesh points; for a new purchase, rely on a direct manual count.
Common Mistakes to Avoid When Counting
Several errors can throw off your count by one or two links, which can completely ruin your drivet