When your training takes place indoors, the Tacxreg Antares roller trainer lets you cycle freely to refine your coordination and technique mdash or just to get in a good workout. Feel secure For a more stable ride, conical rollers ensure your bike always remains in the middle of the roller. Store with ease If you donrsquot have space to spare, donrsquot worry. Antares is retractable for easy storage and accommodates different bike sizes.