Here is a bike jump ramp that lets you clear 3 to 5 meter gaps. The MTB Hopper Lite is designed for low and medium speed jumps (15-25km/h). It has a truss construction, so it is stable and can be adapted to any terrain. You can adjust the length of each leg to change the angle.
Lite can be set up in about 2 minutes. It has weight load capacity of 130kg. It has a smooth surface that makes it ideal for bikes, skateboards, scooters, and rollerblades. You can find out more about it here.