Garmin TacX Boost Trainer Bundle, Indoor Bike Trainer with Magnetic Brake, Speed Sensor Included to Track and Train with Your Favorite Apps

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 and TrainerRoad - Suitable Axles : Width of rear fork: Race 130 mm, MTB 135 mm. Adapters for other widths available.
Powerful magnetic brake means you get the most out of your indoor rides
Manually control resistance with a lever placed on the handlebar of the bike; 10 resistance levels, up to 1050 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)