Dedication to Full-Length Boron Rods

Boron fibers are a strong but expensive material, and their weight is heavier than that of carbon fibers due to their metallic composition. Therefore, improper usage can result in nothing more than a “hard and heavy rod.” To exhibit their excellent characteristics, boron fibers require an appropriate balance of composition with carbon or glass fibers.

Restaffine has been producing “full-length boron rods” for 40 years, utilizing the excellent stretchability of boron fibers. During this time, we have developed the optimal pattern and a special technique of winding boron fibers onto an extremely thin mandrel (core wire) with a tip diameter of less than 0.5mm.

“Power is not just about stiffness.”

In Restaffine’s design concept, the “power” of a rod does not necessarily mean “stiffness”. If we were to describe the limit of a carbon rod’s power as “strength that doesn’t bend any further”, then the power of a full-length boron rod would be the unique viscous property of boron that momentarily bends even closer to its limit and then quickly snaps back into shape.

When you hold a full-length boron rod, you can feel its responsive and powerful yet gentle nature as the blank’s viscosity characteristics are revealed, responding quickly and powerfully to any added load from the moment the bend of the rod begins to slow down.

Boron fibers have an incredible restoring force against stretching, but their strength is not immediately apparent when not under load, and they may even feel somewhat softer than carbon fibers. However, it is precisely this characteristic that allows for casting lighter lures further, moving heavier jigs more powerfully, and enabling precise hook sets with minimal rebound.

Gravity Controlled Structure

Many people who hold the Restaffine full-length boron rod are surprised and ask, “Why is it so light even though it’s a full-length boron rod?”

The Restaffine full-length boron rod features a thick shaft with a multi-layered structure of material components, with an increasing number of plies (the number of times the material is wrapped around the mandrel) as it approaches the handle.

This results in a “handle-weighted multi-structure” that produces a shaft that is both lightweight and resilient, with minimal added weight.