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RhynoCZ
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PostPosted: 22:24 - 14 Jan 2015    Post subject: Kawasaki's new patent... Reply with quote

So, have Kawasaki went mad or is there gonna be something rather interesting?
As we all know, Bimota uses this set up for a couple of years now, but Kawasaki came with new ideas that will, apparently, have positive effect on performance if this type of suspension.

Not sure when or if they are gonna use this system on any motorcycle in the future, but it'd be interesting to see it in action.


Further info (English) and more pictures: https://therideadvice.com/kawasakis-next-trick-revolution-front-end-design/
Original link: https://www.motorkari.cz/clanky/moto-novinky/kawasaki/kawasaki-ma-patent-na-nove-zaveseni-predniho-kola-30430.html

https://img.motorkari.cz/upload/images/cache/clanky/2015-01/20150113073248-30430_jpgresize_1000x830__type_jpg_.jpg
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Last edited by RhynoCZ on 23:45 - 14 Jan 2015; edited 1 time in total
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G
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PostPosted: 22:44 - 14 Jan 2015    Post subject: Re: Kawasaki's new patent... Reply with quote

I like the idea of this sort of thing for two wheel drive - still have to do some funky stuff with a front sprocket, but should be easier than with forks.

Of course, that'll introduce a load more variables into the mix.
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Albigularis
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PostPosted: 23:35 - 14 Jan 2015    Post subject: Reply with quote

My worry would be the effects under hard front braking? The front pivot point is now further back, meaning it will bring the rear up with more force, quicker...
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jjdugen
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PostPosted: 23:50 - 14 Jan 2015    Post subject: Reply with quote

Why is there a heavy frame, just bolt it to the engine.
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G
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PostPosted: 23:55 - 14 Jan 2015    Post subject: Reply with quote

jjdugen wrote:
Why is there a heavy frame, just bolt it to the engine.

Why do you think the frame is heavy?

Have you ever picked up a decent sports bike aluminum frame?
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RhynoCZ
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PostPosted: 09:07 - 15 Jan 2015    Post subject: Reply with quote

jjdugen wrote:
Why is there a heavy frame, just bolt it to the engine.


I guess, Kawasaki learned from the mistakes of its competition.

There was this ELF Honda, with a CB engine, that was raced in the Bol d’Or and 24h LeMans in the early 80's. The suspension was mounted to the engine, which caused it to crack the crankcase.
The next bike with this setup, from Japan, was Yamaha GTS 1000, which I've no further info of, but the engine was not part of the frame and the bike was made for the open road, which the ELF Honda was not, for a pretty understandable reason.
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stinkwheel
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PostPosted: 09:12 - 15 Jan 2015    Post subject: Reply with quote

Kawasaki have previous in this respect with the GTS1000.
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RhynoCZ
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PostPosted: 09:23 - 15 Jan 2015    Post subject: Reply with quote

I have had not known that. Thumbs Up
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map
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PostPosted: 10:59 - 15 Jan 2015    Post subject: Reply with quote

stinkwheel wrote:
Kawasaki have previous in this respect with the GTS1000.
Wasn't that another maker, Yamaha?

https://upload.wikimedia.org/wikipedia/commons/thumb/5/57/Yamaha_1000_GTS.jpg/640px-Yamaha_1000_GTS.jpg
according to Wikipedia
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stinkwheel
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PostPosted: 12:01 - 15 Jan 2015    Post subject: Reply with quote

map wrote:
stinkwheel wrote:
Kawasaki have previous in this respect with the GTS1000.
Wasn't that another maker, Yamaha?

https://upload.wikimedia.org/wikipedia/commons/thumb/5/57/Yamaha_1000_GTS.jpg/640px-Yamaha_1000_GTS.jpg
according to Wikipedia


Oh yeah. Doh!

I just automatically thought GT = Kawasaki.
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dydey90
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PostPosted: 17:42 - 15 Jan 2015    Post subject: Reply with quote

Weirdly enough, most of the futuristic bikes on sci-fi films and stuff have a very similar looking set up to this.

For the two wheel drive thing, wouldn't that still require an incredibly complicated system of gears and linkages? It still has to steer.
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moonzoomer
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PostPosted: 17:48 - 15 Jan 2015    Post subject: Reply with quote

The Yamaha GTS 1000 was apparently a great handling bike gaining 6th place in the IOM TT Formula 1 race back in 1995 on it first visit , the rider was Steve Linsdell.
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moonzoomer
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PostPosted: 17:52 - 15 Jan 2015    Post subject: Reply with quote

dydey90 wrote:
Weirdly enough, most of the futuristic bikes on sci-fi films and stuff have a very similar looking set up to this.

For the two wheel drive thing, wouldn't that still require an incredibly complicated system of gears and linkages? It still has to steer.

Not that complicated, Ossa used a flexible drive cable on their trials bikes, Rokon used a chain drive for the front wheel, Yamaha used a hydraulic pump on theirs.
https://www.gizmag.com/go/2351/
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G
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PostPosted: 18:34 - 15 Jan 2015    Post subject: Reply with quote

Of the existing designs, the only one really well 'proven' is the Christini I'd say - one of these on a 300 with auto-clutch should remove a significant skill requirement I reckon Smile.

However, my point was that you should be able to have a pretty conventional chain drive with this. From the schematic, you'd just need a normal chain drive as you'd have on the rear, then some kind of CV joint style bearing to cope with the angles.
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