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Richard230
08 May 2014, 1503
Say is isn't so! Talk about dredging up a name from the past. :O From blue smoke and stink to green? Will it work this time? :confused:

http://news.motorbiker.org/blogs.nsf/dx/bultaco-to-make-electric-motorcycle.htm

Richard230
18 May 2014, 0643
Bultaco has just shown their electric motorcycle and it looks like a nice one: http://news.motorbiker.org/blogs.nsf/dx/bultaco-their-new-electric-motorcycles---a-winner.htm

Richard230
18 May 2014, 0700
And here is a link to a video where their engineers talk about the features of the bike: http://news.motorbiker.org/blogs.nsf/dx/bultaco-their-new-electric-motorcycles---a-winner.htm

Note the the features include ultra capacitors, an odd front suspension that looks a lot like what BMW uses and a "new feature never seen before" - rider-selectable electrical regeneration. :rolleyes:

EV_Scoot
18 May 2014, 1505
What kind of steering system is that Richard?

Sent from my HTC Sensation using Tapatalk

Richard230
18 May 2014, 1805
What kind of steering system is that Richard?

Sent from my HTC Sensation using Tapatalk

It looks like the BMW front suspension system used on their 4 and 6 cylinder models (see attached photo). I seem to recall that it was developed by a British inventor and then appropriated and re-engineered by BMW. It is a variation of the Telelever suspension used on the R1200R boxer models (see two photos of my bike showing the shock and fork tubes), which use sliding tubes to locate the front wheel and a single spring/shock absorber unit to control movement of the front suspension. It is strong, simple, heavy and can be designed to provide little or no sag when braking.

The one used on the 4-cylinder bikes is more like what is being used on the Bultaco, as it uses flat plates to locate the front wheel and has four pivots at the top of the plates to provide suspension travel, which is controlled by the center spring/shock unit. It's only real issue is that you loose road feel, which is likely why you never see the suspension system on a racing motorcycle. I am surprised to see Bultaco using this suspension system as it is so much like the BMW system it would likely infringe on their patent. I am sure BMW would never license their designs to other companies. :confused:

EV_Scoot
18 May 2014, 1933
Thanks for all that info Richard

Sent from my HTC Sensation using Tapatalk

Richard230
19 May 2014, 0731
I think if you look closely at the front end of the bike in the photo in this article the design of the front suspension and the way it works will be more clear than my written explanation. It is an interesting design: http://news.motorbiker.org/blogs.nsf/dx/bultaco-their-new-electric-motorcycles---a-winner.htm

One advantage to the design with the "central spring/damper strut" is that you can plug in a number of premium fully-adjustable or even computer-controlled units much easier than doing the same thing with a sliding tube type of front suspension. Personally, I much prefer bolting on a new shock absorber when one wears out rather than taking apart a set of cartridge or inverted forks to modify or service them. :)

A-Bomb
19 May 2014, 0820
Here's a whole bunch of pictures, including the other bike:
http://www.autoblog.com/2014/05/19/bultaco-rapitan-electric-motorbike-revival/

frodus
19 May 2014, 0845
It's a Norm Hossack front end..... Same guy who designed the K1200S front end. Many bikes have used this style front.... It's nothing new. I've seen Ducati with them, Yamaha, Triumph and even the Amarok electric race bike.

They're not using BMW tech, but Hossack tech.

Richard230
19 May 2014, 0902
Here is a detail of the front suspension: http://www.autoblog.com/photos/bultaco-rapit-n-and-rapit-n-sport/#photo-2624066/

I thought BMW had bought the rights to the Hossack suspension design. :confused:

frodus
19 May 2014, 1004
The duolever is a copy of Hossack's design. Hossack's patent ran out and they started using under the duolever name. They didn't even involve him on the design.

Read more here:
www.hossack-design.co.uk

Richard230
19 May 2014, 1414
The duolever is a copy of Hossack's design. Hossack's patent ran out and they started using under the duolever name. They didn't even involve him on the design.

Read more here:
www.hossack-design.co.uk

Now that sounds more like BMW......:rolleyes:

Richard230
22 May 2014, 0721
Motorcycle News picked up the story and is asking their readers to volt (sorry, a slip of the fingers, I meant vote) on their interest in owning an electric motorcycle such as the Bultaco. If you wan to vote, you can do so here:

http://www.motorcyclenews.com/MCN/News/newsresults/General-news/2014/May/may2114-can-bultacos-tempt-you-to-go-electric/

CaptainKlapton
09 July 2014, 1109
Found a few short interviews with the founders talking about their future plans and giving some more detail on the tech going into the current concepts
Link (http://www.technologicvehicles.com/en/green-transportation-news/2764/video-bultaco-motors-new-electric-bike-unveil#.U72CBlPcjeQ)
Sounds like they have adopted a mild "engine braking" feel for off throttle regen and then a more aggressive leaver actuated stage which feeds a super capacitor, not unlike Toyota's latest LMP1 car.

edit: Here (http://www.youtube.com/channel/UC5jg1QRxS8OTuAMf4WA4mfg) is their youtube channel

Richard230
09 July 2014, 1421
There are a lot of really smart people out there producing concept electric motorcycles, such as the Bultaco, and many of them talk up the product very well. The problem is getting their ideas into mass production. I think that when they finally start thinking about producing what they have in mind, the details, money and other issues really become overwhelming, especially when they are up against an established worldwide IC market that just isn't set up to deal with a lot of el motos right now.