Jet Black M5 Pro Mag Trainer The JetBlack Z1 PRO Fluid is an award winning trainer and like all JetBlack trainers, comes with a lifetime warranty. Folds into compact shape for easy storage and transport. Lowest profile of any trainer Multiple coaching sessions crafted by Olympic cycle coach Murray Healey Upload your session to Training Peaks and Strava Features a handlebar mounted remote lever for resistance adjustment Comes equipped with a Hydrogel Roller