JetBlack Trunk Racks are one of the most compatible, versatile and no fuss bike racks in the market place. The JetBlack Easy-Fit-System has been designed to be one of the easiest bike transport systems without the need for complicated locking systems. The Innovative Easy-Fit-System will fit nearly all bike frame designs from children’s bikes to E-Bikes and road bikes to downhill mountain bikes. All without any adapters or supports. The JetBlack 3-Bike Trunk Jetrack comes with 6 bungee cords.