Table of contents
Kawasaki
6th pictures
Kawasaki
1/6 Kawasaki has patented a steering knuckle system.
Kawasaki
2/6 The Kawasaki system relies on a single-sided swing arm at the front.
Kawasaki
3/6 This rocker is rotatably suspended at four points via intermediate links.
Kawasaki
4/6 The steering forces are transmitted relatively directly from the steering head.
Bimota
5/6 The system on the Bimota Tesi H2 is much more complex.
Bimota
6/6 The Italians rely on a two-arm swing arm and two trailing arms.
counselor
technology & future
Kawasaki adapts Bimota technology: patent for stub axle steering
Kawasaki adapts Bimota technology Patent for stub axle steering
Kawasaki Europe has secured the shots at Bimota with a stake. Now the Japanese seem to want to take over the stub axle steering from the Italians. At least that’s what a corresponding patent suggests.
Uli Baumann
03/23/2020
Along with Kawasaki the Italian luxury forge Bimota is releasing a Kawasaki Bimota. The Bimota Tesi H2 combines the well-known Ackermann steering of the earlier Tesi models with the supercharged engine from the Kawasaki H2. The Tesi H2 was presented as a prototype at EICMA 2019 and is to be presented as a series model at EICMA 2020. Since the Tesi H2 is likely to be traditionally high-priced, Kawasaki now seems to bring the fascination of axle steering to mass production level.
Bimota
Bimota stub axle steering on the Tesi H2.
Kawasaki system less complex
As the patent specification that has now emerged shows, unlike Bimota, Kawasaki uses a single-sided swing arm on the front of the Tesi H2. A similar design had already been seen on the Yamaha GTS 1000. The linkage of the rocker arm, which is supported by a thrust strut on a central spring strut located transversely in front of the engine on the front subframe, takes place via four points; Bimota provides a central axis here. Kawasaki also goes its own way when it comes to steering. While Bimota initiates the steering impulses via two trailing arms with multiple translation from the handlebar, Kawasaki uses a more direct linkage to the steering head. Steering and suspension are completely decoupled.
Overall, the Kawasaki stub axle steering is much less complex than the Bimota counterpart. This means that the stub axle steering could actually make the sustainable leap into large-scale production at this time.
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