Take your ride inside with Tacx? Boost. This powerful basic trainer has a forceful magnetic brake that means you can get the most out of your indoor rides. Control resistance with a lever on your handlebar; the higher the position, the more resistance. This trainer is robust and stable, and the setup is easy - with just two simple clicks, you?re ready to ride. The relatively large flywheel generates a realistic ride feel, and it comes with a closed resistance unit to reduce noise. The included multifunctional front wheel support ensures not only a natural cycling position, it also serves as a handle to carry the trainer. Take your training to the next level with the Boost bundle. Receive the same great Boost basic trainer as well as a speed sensor so you can track how far and how fast you?re riding indoors and train with your favorite app (requires app downloaded on your tablet, phone or laptop paired to speed sensor). FEATURES: Boost trainer: Get the most out of your indoor rides with the help of the powerful magnetic brake. Manually control resistance with a lever placed on the handlebar of the bike; 10 resistance levels, up to 1,050 watts. With just two simple clicks, easily set up your bike into the robust and stable trainer. Experience a realistic ride feel generated by an actual flywheel (1.65 kg or 3.64 lbs). Enjoy quieter training sessions, thanks to a closed resistance unit that reduces noise. Go for a natural cycling position and increased stability with the included multifunctional front wheel support, which also serves as a handle to carry the trainer. Boost Bundle Only: Included speed sensor allows you to track speed and distance and train with your favorite apps (requires app downloaded on your tablet, phone or laptop paired to speed sensor) - such as the Tacx? Training app, Zwift and TrainerRoad. SPECIFICATIONS: Max power (sprint): 1050 watts Weight flywheel: 3.5 lbs Mass inertia: 20.2 lbs Weight: 18.8 lbs