Tag Archives: Design

No Bump-Steering LAMOTO2 Center Hub Steering Solution

May 6, 2011 – 9:57 pm

LA MOTO2 PROJECT suspension 1 from Beltrance on Vimeo.

As you probably had noticed, if you used to come to this café, it has been closed for a while. We’ve been really busy with the LAMOTO2 project and with other projects that unfortunately are paused (hope that not stopped)
Here in Spain you can read monthly about our progress but not abroad. So I wanted to show at least a part of what we’re doing.
First of all this little video.
Take a seat and enjoy our delicious coffee!

I have prepared a mini video to show the idea of the system that carries our moto2. In yellow you can see the vertical arm. The thick lines is the part and then up thinner line the real steering axis. The pink line is the top of the steering column of the system, which looks like a fork. When the system compresses the top is “folded”. Therefore there is a ball joint in the joint, to absorb this inclination. Initially the diference is 2 degrees, not zero on purpose. To ensure that the “fold ” goes forward and not backward. At the end it arrives to 7 degrees of tilt for a compression of 120mm. These 7 degrees is absorbed by the green piece that goes in the front of the bike (this is why is a plate) plate that flexes the 7 degrees but kept intact the steer stiffness, work in shear effort. Another thing you see is that the center of the wheel follows almost the same path as a 12 degrees fork. Thus the pilot feel much like a conventional bike and trust the bike from the start.

Center Hub Steering LAMOTO2

With this trick, the mechanism, that is an evolution from the patent of the D1200R Demonstener solve the problem of getting a direct steering to the Hub Center Steering System. In this case applied to a system derived from the Difazio. This was one of the desired conditions in the project (no Bump-Steering). If you look you will see that history is an evolution of our prehistoric V2R StreetDumper

Tags Center Hub Steering, D1200R, DEMONSTENER, Design, engineering, Hub-Centre-Steering, Moto2, motorcycle, prototype, streetdumper | Comment (0)

MOTO2 HUB CENTRE STEERING CBR 600RR ENGINE DOWNLOAD

February 3, 2011 – 9:08 pm

Hi everybody!

This is a present for all the builders and designers that want to build an Honda based motorcycle, and specially for those who want to build a MOTO2.

Probably you know that we’re building an alternative suspension MOTO2 for the CEV.

We have scanned and rebuilt the complete CBR 600RR engine from a digitalized. I hope you’ll like it. The critical points are perfect but obviously the rest it’s closer and in the worst places can be over +-5mm.

If you were a reader of this blog you’ve probably seen I’ve got less time to write. But please send all your comments o doubts and I’ll try to answer you ASAP :-)

HERE IS THE ENGINE SHARED

See you here at the NewConceptsCafé!

Tags cbr 600rr engine download, Center Hub Steering, D1200R, DEMONSTENER, Design, engineering, Hub-Centre-Steering, Moto2, motorcycle, prototype | Comment (0)

La Moto2: Hub-Centre-Steering front suspension System 2 (Demonstener-Difazio-Parker)

January 9, 2011 – 6:09 pm

Originally posted on www.lamoto2.es by the autor.

SYSTEM 2 CALLED D-D-P (DEMONSTENER-DIFAZIO-PARKER)

It’s based on the mentioned systems. It’s main advantage it´s the arm placed over the wheel. It’s relationed in some way with the Ecosse Spirit system. It´s like system D-D but I think it can be lighter.
The biggest inconvenient it’s probably the cooling. There’s less free space for the radiator in the front part of the bike.
Both systems, as you can see are rod-end free for a better precision, even if they are more complicated and heavier.

What do you think about these systems?

Any idea for a better performance?

Do you a have a better system and you want to see it on the racetrack?

I wait for your comments!

Tags Center Hub Steering, D1200R, DEMONSTENER, Design, engineering, Hub-Centre-Steering, Moto2, motorcycle, prototype, Radd Parker, streetdumper | Comments (6)

La Moto2: Hub-Centre-Steering front suspension System 1 (Demonstener-Difazio)

January 9, 2011 – 5:42 pm

Happy new year dear Readers!!

The project Lamoto2 it’s going really well.
We’ve been thinking about publishing it worldwide with the help of www.thekneeslider.com even if this can make the project too much big for our human resources. However I think we’ll do it because it’s a great chance to meet people interested in this kind of projects.
I’ve done the first proposals while we’re waiting for the readers designs. Readers are really interested and they are mainly giving their opinions and some of them are proposing their ideas.

FIRST SYSTEM it´s called D-D (Demonstener-Difazio)

It exploit the best of both systems. It has a double swing arm single-sided or a double swingarm on both sides. It uses a commercial Vyrus rim and it’s really light an efficient.
irst you can see is the headstock, it´s placed inside the hub. It´s a preliminary design so doesn´t matter too much how is it made. The headstock it’s a part of the system that DOESN’T TURN.
There we have the Hub. It turns with the steering. It has big bearing with small section and so a reasonable weight.
The hub wears also the supports of the callipers. We must still calculate if the headstock allows the loads they produce.
The direction come from a bended plate that works mainly in shear mode so it´s strength enough to hold the efforts.
Over the wheel we must continue with a telescopic cylinder that can carry the steering effort with a compass or with a grooved shaft.

The most elegant solution it’s the Cannondale steering system with needle bearings.

The swingarms can be one-sided or both sided depending of the stress analysis results. We’ll choose the one with better performance.