Bicycle trainer
（重定向自Turbo trainer）
![A bicycle mounted on a CycleOps 'Fluid 2' trainer.](/Images/godic/202502/18/Giant_TCX_on_Cycleops_Fluid_22759.JPG")
![Members of a cycling team being interviewed while working out on their trainers prior to a race.](/Images/godic/202502/18/Holden0004_2432759.jpg")
![Stationary velocipede trainer, 1884.](/Images/godic/202502/18/Historical_bicycle_trainer12759.jpg")
![Pointing out a wind trainer](/Images/godic/202502/18/Wind_trainer_being_pointed_out2759.jpg")
A trainer, or turbo trainer, is a piece of equipment that makes it possible to ride a bicycle while it remains stationary. They are commonly used to warm up before races, or when riding conditions outside are not favorable. Using a trainer indoors allows the rider to perform other activities while riding, such as watching TV, without risk of injury.