After three years of evolution, and with the experience acquired last year in Lourdes, where César Panicot became the sub-champion of the Trial-E World, Mecatecno has begun to prepare the launch of the new Dragonfly 2.0.
Although the full technical details of the new 100% Dragonfly 2.0 are not yet known, we can say that it will remain around the 60 kg weight mark, which will make it the lightest trial motorcycle in the world.
5 speed, full mechanical clutch, and 100% built for Trial.
More details of the new Mecatecno Dragonfly 2.0
Mecatecno shows us the design and construction details of the new Dragonfly 2.0, a clear idea to unite the capabilities of a motorcycle with an explosion engine and cutting edge electric tecnolgy.
It has the benefits of an ecological technology through the construction of the motorcycle that is lighter, easy to ride, and less demanding than we can imagine.
To achieve this, a series of innovations have been put into practice, developed 100% by Mecatecno's own engineering team.
These concepts of design and innovation have been developed and tested according to rigid ideas of what the art of trial with an electric motorcycle should be.
IMA (Independent Motor Assembly) independent motor assembly.
IMA is a system that divides the power train into two distinct blocks: the electric motor and the gearbox / clutch.
The specifications of this engine / clutch / gearbox concept are as follows:
- Motor: BLDC 15Kw, 48V, oil cooled.
- Gearbox: 5 speeds.
- Clutch: multidisc in oil bath.
- Crankcases: block made of aluminum CNC 6082 T6 and 7075 T6.
Independent motor: This architecture allows for a clean and more efficient motor maintenance, better electrical insulation and a quick replacement of the engine "running" in case of failure.
Multi-disc clutch instead of Diaphragm: although it is three times heavier, a multi-disc spring clutch has been chosen instead of a diaphragm clutch because it provides better control, greater precision, greater inertial properties and more adjustment possibilities.
This results in a more tactile control in classic driving style or a faster response in modern driving style, depending on the chosen configuration.
5-speed gearbox, instead of direct drive: The inclusion of a 5-speed gearbox allows greater control in the sections, and more comfortable driving in the itransports. It also has a direct impact on energy savings.
CFA (Combined Frame Assembly) combined chassis.
CFA is a system designed to take full advantage of electric propulsion. This means, in other words, not having to limit yourself to the geometric demands of combustion engine motorcycles.
Generally speaking, a traditional motorcycle chassis has to be structural in itself. All the elements are attached to it, and it is subject to great weight, constant tensions and vibrations.
On the contrary, the Dragonfly chassis is not structural in itself. Like the human body, in which the bones would not remain in place if they were not held by the muscles, all surrounding elements participate by adding structural strength where requested.
This concept, together with the fact that the amount of elements is much smaller, much lighter and free of vibrations, allows a lot of benefits.
Some of these benefits are:
General reduction of the weight and dimensions of the tubular chassis.
- Better distribution of the suspended mass and better placement of the center of gravity which has a direct impact on stability, balance and weight sensation.
- Great control over the rigidity of the frame with high impact resistance in the central area and controlled torsion near the steering pipe that allows a smoother ride.
- Reduction of the crankcase, which provides greater narrowness in that area.
- Simplification of the steps for assembly and disassembly which favors the maintenance operations of the motorcycle.
The specifications are:
- Main frame: ø18mm CroMoly tube.
- Side joining bars: 6086 T6 aluminum machined by CNC.
- Cover plate: 7075 T6 aluminum, 6mm thick.
- Engine structural plate: 7075 T6 aluminum machined by CNC.
- Crankcase plate clamps: 6082 T6 aluminum.
CMBP (Centered Mass Battery Positioning) centered positioning of the battery mass.
At first glance, the main characteristic that is perceived is a very accessible battery, easy to replace but protected, but there is much more at stake.
On an electric motorcycle, the battery is the heaviest suspended element. Therefore, it plays a decisive role in the behavior and performance of the motorcycle. In other words, the same weight put here or there, can make the bike feel lighter or heavier, can help you ride easily and accurately or make it very unstable.
The objective of Mecatecno has been to achieve the highest accuracy and ease of piloting, so that it is as demanding as possible.
To achieve this, it has been decided to distribute the mass along the chassis and the swingarm, bringing the center of gravity as close as possible to the line of the wheel axles.
The result has been an unprecedented mixture that achieves an improvement in stability and balance, an increase in the feeling of lightness and also an improvement in traction in the rear wheel.
LLPD (Linkless Progressive Damping) progressive damping without connecting rods.
A progressive suspension is essential in the practice of trial. It helps better performance in all terrain, and greater traction in both low and high speed. But not everything is positive, because a progressive suspension with a system of links adds weight, complexity and, in general, great need for maintenance.
Bearings and fixings should always be monitored, which are too sensitive to adverse conditions. In addition, it only works well when everything is correct, a deformed link, a worn bearing, can easily make the system lousy.
Is it possible to obtain a progressive system without connecting rods? It is not easy, it is not cheap, but in Mecatecno they have opted for it.
First, it requires an excellent single shock absorber, sensitive but robust. In Mecatecno they have decided that ÖHLINS is the best solution.
Second, we need a ventilated environment to ensure that it is stable at any temperature. On motorcycles with a combustion engine, the shock absorber is surrounded by the exhaust pipe, therefore, overheated by external agents, but this problem does not exist on an electric motorcycle.
Finally, you have to find the correct geometry. After numerous tests, they have developed a geometry that mimics the behavior of a connecting rod system, but saves parts, weight and maintenance.
The Hell Team will keep Australian riders informed as development progress for this exciting motorcycle. Release dates, prices and availability.