BCY B55 String Material – 1/4 lb Spool Durable Polyester Bowstring Material for Traditional Bows BCY B55 is a modern high-performance polyester string material designed to deliver improved speed and durability while remaining safe for virtually any traditional bow—new or vintage. Built from advanced low-stretch polyester fibers, B55 offers better performance than older Dacron-style materials while maintaining the forgiveness traditional archers need for older bows. Why Archers Choose BCY B55 Durable low-stretch polyester construction Safe for vintage and modern traditional bows Improved speed over traditional Dacron materials Smooth, forgiving shooting characteristics Excellent choice for classic bow setups Perfect for Vintage BowsB55 is especially popular among archers shooting older traditional bows, including classic Bear recurves and longbows. Helps protect older limb designs Reliable performance without excessive stress on the bow Great balance of speed and forgiveness Built for Traditional Archery Smooth shooting feel Consistent performance and durability Ideal for custom Flemish twist or endless loop strings Specs Material: Low-stretch polyester Spool Size: 1/4 lb Approximate Yield: 1,100 feet waxed per spool Perfect For Vintage Fred Bear bows Traditional recurves and longbows Archers wanting a safer alternative to Fast Flight materials Custom bowstring building Why Buy From Kustom King Materials selected for real-world traditional archery Trusted by traditional archers and bowhunters Built for performance and reliability We stand behind every product we sell