Spiral X® Shimano’s proprietary Spiral X technology utilizes triple layer construction consisting of an oblique fiber core layer, a longitudinal middle layer, and a reverse-oblique fiber outer layer. This unique construction increases rigidity without increasing weight, providing virtually instantaneous power transmission when casting or fighting a fish.
- 15% to 20% less material than traditional rod construction
- Increased torsional stability offers 20% less twist than traditional rod construction
- Reduced blank ovalization
Construction - Spiral X construction consists of three layers: an inner and outer layer of seamless Infinity Tape tightly wound diagonally in opposite directions, and a layer of vertical fibers called Muscle Carbon in between. Utilizing Infinity Tape in place of a traditional sheet of horizontal fibers reduces overall weight and creates actions with superior torsional rigidity and hoop strength.
Muscle Carbon - A high modulus sheet of vertical fibers that provides strength and lifting power.
Infinity Tape - A seamless roll of pre-impregnated graphite tape rolled diagonally onto the mandrel. When overlapped with an additional layer at an opposing angle, the X orientation of fibers eliminates ovalization and twist, considered the main catalyst for rod breakage.