Measuring a compound bow string length is a critical part of maintaining, adjusting and tuning. Ensuring the string is the proper length is key for accuracy and providing the optimal draw for the user. Here we explore the different types of strings and methods for measuring, so you can maintain the perfect string length for your bow.
Table of Contents
Different Types of Compound Bow Strings
Before measuring your string length, it is important to understand the different types of strings. The most common string types are Dacron and Fast Flight.
Dacron
Dacron strings are the most popular strings and are used to equip most factory compound bows. It is made of a woven synthetic material and is designed to maintain its shape and string length through time and use.
Fast Flight
Fast Flight strings offer more speed and distance than a Dacron string but require more upkeep. It is made of a non-braided material, allowing it to absorb moisture, expand and contract with temperature changes, and stretch in use. Because of these factors, the Fast Flight string needs to be adjusted after every 40-50 shots.
Measure the String Length of Your Compound Bow
To ensure your bow is properly maintained, it is important to check the string length. Here we provide you two methods for measuring the length of the string:
Method 1: Measuring By Brace Height
- Measure the distance between the bow’s grip and the valley of the string. This measurement is the brace height.
- Record the distance and add 2–3/4 inches. This is the ideal brace height for a compound bow and will give you the length of the string.
- If the string is off by more than 1/4 inch, it will need to be adjusted or replaced to ensure accuracy.
Method 2: Measuring By Installing a String
- Install a bow string on your bow and make sure the loops are correctly aligned.
- Measure the distance between the bow’s grip and the valley of the string.
- Subtract 1/2 inch from this measurement. This will give you the length of the uninstalled string.
- If the string is off by more than 1/4 inch, it will need to be adjusted or replaced to ensure accuracy.
Conclusion
Measuring a compound bow string length is essential to maintain, adjust and tune your bow. Knowing the different types of strings and being able to measure the length correctly is key for accuracy and providing the optimal draw for the user. Utilizing the two methods provided here will help ensure your bow is always at its peak performance.
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Last update 2021-01-05. Price and product availability may change.