Jet black r1 training rollers lite app
The jet black r1 training roller lite app is jet blacks only rollers and they have put their time and effort into making it the aluminium roller drums offer a smooth and quiet ride with no chance of distortion due to the sunlight or heat jet black have used high end sealed bearings which provide a maintenance free service there is a free lite app for ios or android with audio training sessions read and ride sessions gear recommendations goal cadence session time session profiles sepa