Air Speeder" designed by sticking to weight reduction while following the sense of crispness of 'Speeder' is a model that achieved 33 g of shaft weight. "Ahead of" Air "aim, further pursue lightness and strength. 29.5 g (46.0 in, after painting) realized the lightest shaft ever in history. We are proud that Fujikura has high quality and manufacturing technology that Fujikura is proud of worldwide in the background of succeeding in the development of a shaft of 20 g in view of mass production, I do not feel the lightness of 20 g and the unreliability "ZERO Speeder" which fuses "supple" and "powerful" should be able to break the flying distance.
"Air Speeder" released in March 2014 gained an evaluation of the market which greatly exceeded the expectation, due to the high lightweight needs and the wide area of the target. In addition, in April 2015, as a "Air Speeder Family" full lineup from driver to iron, throughout the club setting, many people are experiencing improvement of distance performance by weight reduction.
Fujikura has continued research aiming at light weight even after "Air Speeder" is released. And this time, we further advanced the weight reduction technology of "Air Speeder", succeeded in developing the world's lightest 20 g base shaft "ZERO Speeder".
In order to achieve the acceleration of the head speed and the strong impact while maintaining the strength, we aimed at the weight of 20 g after painting, we first conducted strength analysis of every shaft by computer simulation.
As a result, we found two essential factors to achieve weight saving and strong impact.
1. Multifoop ply lamination
Adopted "multi-hoop ply lamination" which is a new lamination method of hoop layer, bias layer, straight layer. Particularly suppressing hoop layer collapse, by a two-lens structure to be laminated to respective shafts inner and outer layers, it has achieved improvement in strength of the bending collapse.
2. High torque design
Continue to adopt high torque design adopted also in "Air Speeder". "ZERO Speeder" is designed to have a torque of 10.8 degrees. If you look at the numbers only, but there is in the design of loosening when compared to conventional products of the shaft, suppleness does not feel the unreliability, there is strength.
The painting process was completely reexamined so that the weight after painting can be within the 20 g range. In terms of paint volume, "Air Speeder" was about 1.5 g, while "ZERO Speeder" was about 0.8 g. We succeeded in reducing about 0.7 g.
The design expresses the lightness like the supple and the wind so that a feeling of lighter weight is felt. "E" of "ZERO" has a motif of feathers.
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