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LEMev Stream, characteristics of the Spanish electric scooter
LEMev Stream, characteristics of the Spanish electric scooter
Anonim

In the article before yesterday we talked about the history that has surrounded the creation of the electric scooter LEMev Stream, the first manufactured by Spanish companies and which has already been on sale since last week. Today we will try to delve into all its features, dedicating a final section to carry out a comparison with its gasoline counterparts in terms of expense and maintenance, which, as we will see, will give us a rather surprising result.

The LEMev Stream It is found by its size within the Scooter Grand Touring Segment. We observe that the front shield is chaired by three independent optics, two of them of the parabola type for the high beam and a central one of the ellipsoidal type in charge of the low beam. All of them are equipped with halogen bulbs. The low beam adopts LED technology and is integrated together with the central optics while the turn signals are located on the upper part of the optics.

At the top of the shield, a generously sized windscreen protects the driver and improves overall aerodynamics. From behind and being, as we said, a gran turismo scooter, the LEMev Stream offers enough space for driver and passenger. This has a cast iron handle that runs around the perimeter of the seat from behind. For the feet, the footpegs are of the fixed type.

LEMev Stream: motor and batteries:

LEMev Strean

The motor is housed inside the rear wheel and it is of the brushless type, that is, without brushes. This eliminates the transmission systems to the wheel and the increase of space inside the scooter, reducing power losses. The nominal power is 5 kW with 16 kW peaks (22 hp) and a maximum torque of 100 Nm.

The employee type of batteries It is Lithium with iron phosphate (LiFePO4), a variant of the Lithium Ion that adapts very well to electric motors since its discharge curve is very stable and with which the best compromise between capacity-weight-price is achieved, without the memory effects of batteries classic recharges (gradual and irrecoverable loss of storage capacity). Its voltage is 72 V with a capacity of 50 Ah.

The useful life of batteries is estimated to be approximately 2,000 recharge cycles equivalent to 160,000 kilometers away. They are completely recyclable, and new batteries can be manufactured from them.

If they are completely downloaded and with the standard 220v 50 Hz charger, you need 5 hours to complete the charge up to 100%. If you use the fast charger external 20A, the recharging speed drops to 2 hours to get a full charge.

It is estimated that to help increase the autonomy of the LEMev Stream, the regenerative brake can give you 10-20% extra charge on a typical urban commute, which is between 8 and 16 kilometers of extra autonomy.

LEMev Stream: loop part:

LEMev Stream

The cycle part, as we had mentioned, was fine-tuned by Inmotec, with all that that means. In other words, they have applied their knowledge to their racing bikes and applied it to the LEMev Stream.

The chassis is a steel double cradle frame interlaced in its central area in order to reinforce the housing of the batteries. The weight distribution has been tried to keep as balanced as possible between the two trains and to improve agility in the city, the center of gravity has been placed as low as possible.

At the front, it mounts a 33mm telescopic fork with a total travel of 90mm, while at the rear a pair of hydraulic shock absorbers adjustable in five positions with variable pitch springs is used, with which a progressive setting is achieved in its 56 mm of travel.

The tires are 13 inch and disc brakes on both trains, the front one with double piston calipers and 245mm single piston disc and 220mm rear.

LEMev Stream: controls and instrument panel:

LEMev Stream

The LEMev Stream It has four spheres to transmit all the information to the driver. The two side spheres are responsible for showing different warning lights (left turn signal, high beam and battery charge on one side and, position / cross, diagnostic or fault light and right turn signal respectively).

Of the two central spheres, the left is in charge of displaying the speed and the odometer in both analog and digital while the right shows the battery charge level, also in digital and analog mode, together with the regeneration indicator when it is being done. use of regenerative brake.

The controls of the LEMev Stream They do not differ greatly from those of a conventional gasoline scooter with the exception of two buttons each located on a different pineapple. Where the start button is normally located, the LEMev Stream has a button called "Boost" or turbo, which provides the engine with its maximum peak power, 22 hp.

On the opposite side, a button operated with the left thumb allows us to make use of the regenerative brake, for situations in which it is not necessary to use the brakes to slow down because we can do it more smoothly and in this way, reuse energy to recharge the battery.

LEMev Stream: cargo space:

LEMev Stream

The space for loading in the LEMev Stream is one of its strengths. It has a double access, that is, through the seat and a tailgate, in a similar way to what we could see in the Piaggio MP3 400LT that we tested a few months ago. In front of him is all the battery charging system, that is to say, the cable for the normal recharge that is collected automatically by a button, the connector for the fast charger in two hours and an RS-232 connector for diagnosis and configuration.

Its load capacity is wide since two full face helmets can be perfectly accommodated. To access, a lockable glove box located in the central tunnel gives access to two levers, which are in charge of independently opening the seat or the boot depending on our needs. Behind the shield also has two glove boxes, one of them also protected by a lock.

LEMev Stream: 125cc and… 500cc performance

If we looked with whom compare the performance of the LEMev Stream, we would do it almost in all probability with a 125cc scooter, although this is super mineralized and supervitaminated. Its top speed is approximately 108 km / h, something in line with its quarter-liter competitors, although thanks to the high torque of the electric motors, of the order of 100 Nm in the LEMev Stream, much higher than the figures that a 125cc usually produces, situated at around 13 Nm, it It allows accelerations from 0 to 80 km / h in just six seconds, half that of a 125cc and very close to those of a 400 and even 500cc scooter.

The autonomy under normal conditions, that is, without abusing the "Boost" button, it is around 80 km on a single charge, sufficient for most scooter users.

LEMev Stream: price and amortization

LEMev Stream

The retail price of the LEMev Stream stands at € 5,350, VAT included from which you have to subtract government aid included in the Movele Plan of the Ministry of Industry for the purchase of electric vehicles. With this help, 25%, the price of the LEMev Stream stands at € 4,363 although it could be even less if the aid that some autonomous communities offer separately are applied.

What is the cost of an electric scooter like the LEMev Stream? Well, let's do some simple calculations. Currently the price of kW / h is about € 0.14. If we recharge the batteries every 80 km, the electricity cost every 100 kilometers would be 0, 63 €.

Looking at a 125cc scooter and calculating its consumption at 4 l / 100 and a gasoline price of € 1.4 / l, its cost would be € 5, 6 per 100 kilometers. The maintenance cost can be placed at € 125 every 5,000 kilometers, in terms of revisions of your heat engine. Finally, and common to both motorcycles, we can think of € 100 of expenses per 100,000 kilometers for wheels, pads, etc.

With a route of about 9,000 km a year, saving the LEMev Stream with respect to the gasoline scooter it is around the 672, 30 euros a year, which supposes that in six and a half years, your purchase would already be completely amortized.

Are they starting to be profitable or not?

LEMev Stream datasheet:

  • Motor:
    • Type: Brushless Electric Motor
    • Power max. dec.: Nominal 5 kW (6.8 hp), maximum 15 kW (20, 39 hp)
    • Torque max. dec: 100 Nm
  • Battery and electronics:
    • Battery type: LIFEPO4 LiFePO4
    • Battery capacity: 50 Ah (4 kWh)
    • Battery weight: less than 54 kg
    • Voltage: 72V nominal
    • Battery charger: 800 W, 220 V (50 Hz)
    • Charging time: 5 h on home network. 2.5h in fast charge (20 A)
    • Charge Cycles (Estimated Lifespan): 2000 Complete Cycles
    • Battery management system: External BMS with cell equalization included
    • Controller: 99% efficiency, with Mosfet
    • Instrumentation: Digital speedometer, battery charge indicator, regeneration indicator, diagnosis, charge status
  • Suspensions:
    • Front: Telescopic spring / shock absorber with 90mm travel
    • Rear: Double spring / shock absorber with 56mm of travel
  • Brakes:
    • Front: 240mm disc with dual piston caliper
    • Rear: 220mm disc with single piston caliper
  • Wheels:
    • Front: 110 / 90-13
    • Rear: 130 / 60-13
  • Dimensions:
    • Wheelbase: 1,555 mm
    • Seat height: 800 mm
    • Motor weight: 21 kg
  • Price: € 5,350 not including government aid

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