TRAINER
A bicycle trainer (turbo trainer or resistance trainer) is a device that allows a cyclist to ride their own bicycle indoors. Unlike a roller, the rear wheel (or the whole drivetrain in a direct-drive trainer) is held stationary by the device while providing resistance.
Trainers are more stable than rollers and are easier to use, making them suitable for structured interval training. Smart trainers can connect to apps like Zwift and automatically adjust resistance to simulate route gradients.
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