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Development of Double Wishbone Type Front Suspension for 2018 Gold Wing

Article of Honda R&D Technical Review Vol.30 No.2

Summary

In developing the front suspension system for 6th generation 2018 Gold Wing GL1800, we aimed to realize both agile handling and high stability at the same time, and a comfortable and high quality riding experience. To this end, we developed a Honda original double wishbone type suspension system for motorcycles. By devising the arm layout, the stroke trajectory of the front axle was set in the vertical direction, and the amount of rearward movement of the tire was reduced. This made it possible to allow forward shifting of the engine position, which in turn increases the front divided load, and we were able to realize both agile handling and high stability at the same time. In addition, by using needle bearings for all pivots and at the same time having a structure in which lateral force does not act on the cushion, the sliding resistance was able to be reduced as compared with the telescopic type suspension. As a result of all these enhancements, the vertical acceleration of sprung mass was reduced by about 30% compared with the previous model in traveling roads such as an uneven road, contributing to the realization of a high quality and comfortable riding experience. Furthermore, in this system, the handlebar pivot axis is offset backward from the wheel steering pivot axis, and tie rods are used to connect between the pivots. This mechanism effectively shortened the length of the handlebars and enhanced operability in situations close to full steering.

Reference

(1) http://www.honda.co.jp/NSX/webcatalog/performance/driving/

Author (organization or company)

Naoki KUWABARA(Motorcycle R&D Center)、Junpei MISHIRO(Motorcycle R&D Center)

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