

When it comes to premium bowstring materials, few names carry the reputation of BCY 452Xtra. Built on the legacy of the original 452X, this updated material has become a go-to choice for custom string builders and serious archers who demand long-term consistency, durability, and dependable performance.
BCY 452Xtra is constructed from a patented blend of 67% Dyneema® and 33% Vectran, combining the strength and lightweight characteristics of Dyneema with the exceptional stability of Vectran. The result is a bowstring material that virtually eliminates creep, helping bows stay in tune while reducing peep rotation and maintaining consistent draw length and poundage over time.
One of the biggest improvements over the original 452X is the addition of a new high-abrasion-resistant Vectran fiber, designed to reduce fraying without changing the material’s trusted size or strength. Archers still get the same dependable performance that made 452X an industry favorite, but with increased durability for today’s high-performance compound bows.
BCY recommends 20–24 strands for most compound bow applications, making 452Xtra an excellent option for hunting bows as well as target setups. Its balance of speed, stability, and longevity has made it the benchmark against which many other compound bowstring materials are measured.
For archers looking to maximize consistency and minimize maintenance, BCY 452Xtra continues to deliver the performance trusted by custom string builders and competitive shooters alike. Whether you’re replacing worn strings or building a custom setup, it’s a proven material designed to help your bow perform at its best, shot after shot.


