About the Tacx FLUX 2 Turbo Trainer The iconic FLUX Smart has been upgraded to the FLUX 2 Smart. Compared to its predecessor, it is equipped with a bigger and stronger resistance unit that can realistically simulate inclines up to 16% gradient and a heavier flywheel also helps significantly improves the ride feel and responsiveness of the Flux 2 Smart. With these improvements, this Smart trainer is able to better replicate the experience of outdoor rides. This resulted in a wider simulation range, better ride feel and a more accurate power measurement. A reliable, accurate and consistent power measurement is key to keep track of your performance and progress. This is exactly what the Flux 2 Smart is designed for, it measures your power accurately within 2.5%. The Flux 2 Smart is designed to bring vibrations and noise levels to the absolute minimum. This resulted in a very silent flywheel equipped bike trainer. Key Features > Measures your power accurately within 2.5%. > The most silent flywheel equipped bike trainer available. > Connect to popular training apps like Zwift & Tacx. > Realistically simulate inclines up to a 16% gradient. > A strong trainer with a maximum sprint resistance of 2000 watts. > A large 7.6kg flywheel ensures the best ride feel.