Tacx Smart Trainers
To make the cycling feeling as realistic as possible, all Tacx trainers are equipped with a flywheel. When you are cycling outdoors and stop pedalling, your bike does not stop rolling immediately. The same effect is seen in the dead point of your pedal stroke. The kinetic energy causing the bike to keep rolling is simulated by the trainer’s flywheel; this is called the flywheel effect or mass inertia. The heavier the flywheel, the more realistic the cycling feeling.
Tacx trainers are equipped with an actual or a virtual flywheel. The best experience is achieved with an exact simulation of the rider’s weight, which is only possible with a virtual flywheel. In this case, the trainer simulates the mass inertia instead of producing it with an actual flywheel. In contrast to the actual flywheel, the virtual flywheel can adjust the mass inertia to the circumstances; like speed, slope and weight. For example, when you ride up a mountain you will experience a different cycling feeling than when you are riding with high speed on a flat road. Therefore, the virtual flywheel is the best solution for an optimal cycling experience.
Trainers equipped with a virtual flywheel are the NEO Smart and Genius models. The Bushido Smart is a combination of an actual and virtual flywheel.
Brake force & brake power
The brake power of the trainer is the result of the brake force and mass inertia of the trainer and dependent on your speed. For example, a NEO Smart is capable of generating 2200W at 40km/h, while a Vortex can power up to 950W at this speed. A trainer with high brake power can generate high resistance at low speeds, so it can realistically simulate steep inclines.
The higher the brake force, the steeper the incline can be simulated at a certain weight. For example, the NEO has a brake force of 250N and can therefore simulate a slope realistically up to 25% at a weight of 75kg. The trainer’s brake force, expressed in Newtons (N), is defined by the structural architecture that causes the resistance, like the kind and amount of magnets. Which brake force is required for an accurate simulation is defined by the weight, slope, air resistance and rolling resistance. All these factors are taken into account in the simulation.
The mass inertia represents the needed energy to set the flywheel in motion or accelerate it. In contrast to an actual flywheel, a virtual flywheel can change the mass inertia precisely to the conditions; like speed, slope and weight. Therefore, a virtual flywheel is adjusted to accurately simulate the rider’s weight. This results in the most realistic simulation.
Interactive trainers of Tacx measure your cadence without the help of a sensor. The trainer is constantly aware of your speed and uses this to define your cycling movement. The speed is zero at the top of the pedal stroke and it is maximal in between. Therefore, the trainer knows when you have made a full circle and uses this to define your cadence.
Because of this calculation there is no need for an external sensor, but this is possible if required.
Smart technology refers to the Smart electronics products use to communicate. Tacx Smart trainers can be connected to any device, and several devices simultaneously, as they communicate via ANT+ and Bluetooth® Smart.
Tacx Smart trainers are characterized by the following features:
1. Open wireless communication
2. Measuring and receiving performance data
3. Upgradable firmware
4. Standalone training