First Superior aerodynamics

The Milan SL reaches high speeds with very little energy. We have measured the power-measuring CycleOps Powertap-world record runs during the performance. The Milan SL reaches speeds above then the following:

45.4 km / h at 116.5 watts
50.0 km / h at 134.5 watts
54.8 km / h at 158.0 watts
60.0 km / h at 185.0 watts


By the side of the closed wheel arches a sensational CWA is reached, for only when dispensed in the form of the body Laminarbereich interruptions can be minimized wake behind the vehicle. Furthermore, this is also crucial to minimize the frontal area, which is achieved by rotating the body get all the parts and also the head of the driver's own projection and line management.

Particular attention was paid to the subfloor, its special design takes into account the turbulence of rotating wheels in conjunction with the compression of the flow between the road and under ground.

Another special feature of the aerodynamic shape of Milan, that was considered in the design and the fact that the driving experience the rare Hauptanströmung directly from the front, but usually takes place at an angle from the front.

Second Stability even in extreme crosswinds and turbulence

The safe driving in extreme weather conditions should also be guaranteed in a lightweight vehicle. Situations where for example, causes a strong crosswind and / or a high-speed oncoming truck high pressure differences may create a dangerous situation.

Due to its minimal side surface and a special arrangement of wind-pressure point and the vehicle center of gravity reaches Milan a sensational driving stability even in such extreme situations.

Third Kerb weight of 18 kg

Both for the acceleration, velocity gradients at and for the constant speed of the vehicle in the plane, the weight of the utmost importance. With its contoured shape and the fact that many functions have been grouped into a few components, a sensationally low weight are achieved without compromising safety or durability.

Due to the minimal frontal area (and therefore less total surface area) and the alignments produced a light and stiff body.

By the closed body cross-section over the front spring strut domes no need for costly Tumski Bridge. By the closed sides of the body is also formed a closed wheel arch cross-section, which is both extremely increased the rigidity of the chassis suspension, on the other hand, material savings.

The Tretlagermast is firmly laminated on a T-shaped end in front of the vehicle. This creates a very torsionally rigid total unit, which in turn allows material savings.

The rear wheel combines several functions: it is self-supporting and receives the rear wheel and shift work, he encapsulates the drive (separation of the impeller and drive train), he is also the aerodynamically optimized management of the rear wheel and he picks up a load-bearing part of the seat support.

4th Vehicle characteristics which allow a high continuous output of the driver

In order to ensure a smoother ride, are realized in Milan, a number of measures. Suspension, driving ergonomic adjustment of the seat and the Tretlagerposition, comfortable eating while driving, sensible cooling, and the opportunity to take the head easily have made an important contribution to the Milan go sensationally as a three-track suitable for everyday use velomobile in his world record runs to success could.

In particular, the efficient cooling of the driver in the development represented a challenge: cooling and aerodynamics behave fundamentally antagonistic.Therefore should be avoided in the air intakes Laminiarbereich the body. The air was cool mainly the driver's head, where most of the congestion caused by competition. Ventilation should be easily adjustable and can be flexibly adapted to changing situations. Finally, it should not be let in the air near the ground, because there on the asphalt significantly higher temperatures than at 90 cm height.
This specification is the AC Milan in the entire line: the adjustable hood with visor, the driver flexible cool air directly onto the face and neck, avoiding direct competition, even in extreme situations, a thermal overload.

At high temperatures or the pure driving fun of it, the hood and the hatch cover of the Milan are stowed in the vehicle. In order to achieve without hood cover and a good aerodynamics, both the body of the Milan MK 2 as well as the Milan of the SL is also optimized for this state. Due to the aerodynamics of the underbody and optimized specifically for the open driver's driving Kopfhutze of Milan also comes in an open vehicle to enjoy, to reach his pedaling very high speeds.

5th Dynamics

The vehicle has to deal with good suspension and damping with poor road surfaces. It must be suitable for high cornering speeds, so that curves can be passed through without reduction of speed. Due to its extremely low center of gravity, the various settings of the seat and the variable spring adjustment reflects the Milan meeting these concerns.With its streamlined shape and sophisticated suspension stabilized the vehicle and gives a secure feeling at high speeds.

6th Lowest possible power losses

The transfer of forces from the crank to the rear wheel should be done as a low-loss package of measures to improve the efficiency of the drive in Milan SL.:

  • Torsionsverluste of Tretlagermastes be prevented by the central frame via a T-piece front in the bow of the vehicle is anchored.
  • In the back of the pickup point receives an additional torque beam Tretlagermast.
  • The chain will be diverted via the highest quality pulleys.This large rolls are used with 23 teeth, so losses are greatly reduced. Even with a round passage of the driver occurs swelling load peaks in the chain, which leads to oscillations of the drive span. In Milan, the SL pulleys are so arranged that vibrations and resonances are avoided. Even chain vibrations due to poor road surfaces will be avoided.
  • Pulleys and brackets for the pulling side and the slack side can be shifted laterally on an axis and adapt to a switch, the ideal chain line.
  • With a very high spoke tension of the drive wheel, the force will be brought losses on the road. With a special process in the spoked wheels in a careful hand wheels that meet this requirement.Therefore, the drive wheels of the Milan symmetrically spoked center to the flange by the laterally offset in the direction of the rear of the Milan symmetrical spoked rear wheel then runs back in the exact center of the vehicle and can play to its torsional rigidity at the beginning and full curves.

7th Power to weight ratio and the size of the driver

The Milan SL as the little twin brother of Milan MK 2 offers for small to medium-sized driver the appropriate body size and thus allows an adjustment of power to weight ratio and the total area.

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