how often to restring a compound bow

Compound Bow String Maintenance and Replacement

Factors Affecting String Lifespan

Several elements contribute to the wear and tear of a compound bow string, impacting its performance and safety. These include the frequency of use, environmental conditions, arrow weight, draw length, and the quality of the string material. High usage increases friction and stress, leading to faster degradation. Exposure to extreme temperatures, humidity, and UV radiation can also weaken the string fibers. Lighter arrows and excessive draw lengths put additional strain on the string. Finally, higher quality string materials and construction inherently offer greater durability.

Identifying String Degradation

Regular inspection is crucial for detecting signs of wear. Common indicators include:

  • Fraying: Visible unraveling of the string fibers, particularly in high-stress areas like the loops and serving.
  • Serving Separation: Gaps or looseness in the serving (the protective wrapping around the string), especially around the cams and cable slide.
  • Peeking Cables: The internal strands of the cables becoming visible due to serving wear.
  • Creep: Gradual lengthening of the string, leading to changes in the bow's timing and performance. This is often noticeable through peep sight misalignment or a reduction in draw weight.
  • Damage from D-Loop: Wear at the D-loop attachment point.

Any of these signs indicate the need for professional evaluation and potential string replacement.

Serving Maintenance and Replacement

The serving protects the string fibers from abrasion and wear. Regular waxing of the serving helps to maintain its integrity and extend its life. When the serving shows significant wear, it should be replaced by a qualified technician. Ignoring worn serving can lead to accelerated string damage.

String Waxing Best Practices

Applying wax regularly to the string and cables helps to lubricate the fibers, reduce friction, and protect against moisture. Use a wax specifically designed for bowstrings. Apply a small amount of wax and rub it into the string with your fingers or a piece of leather. Avoid over-waxing, as this can attract dirt and debris.

Professional Inspection and Bow Tuning

A qualified archery technician can assess the overall condition of the string, cables, and bow. They can also perform necessary adjustments to ensure optimal performance and safety. This includes checking the bow's timing, draw weight, and cam synchronization.

String Material and Construction

Different string materials, such as BCY-X, 452X, and Trophy, offer varying levels of durability, stretch resistance, and performance. The number of strands used in the string and the braiding technique also affect its strength and stability. Consider these factors when selecting a replacement string.

Archery Form and Impact on String Longevity

Improper archery form can inadvertently place undue stress on the bowstring and cables. This includes but is not limited to 'dry-firing' (releasing the string without an arrow), improperly gripping the bow, and incorrect draw length. Consistent, correct archery form prolongs string lifespan.