Action photography shows up more if you have control of the shutter speed on your camera. Most cameras in cell phones have high speed shutters. If you can slow down the shutter speed and hold steady on your bike, the background will be blurred.
Panning with the subject will blur the background when you release the shutter, like focusing on your handlebars or front wheel, will blur the pavement.
Hold the camera steady on the background and releasing the shutter as the subject passes through the viewfinder will blur the subject in front of the still back ground.
This is hard to do unless you can adjust the shutter speed on your phone. Shooting against a background will take two people or a camera on a tripod and a remote shutter release.
Aperture settings are fun to play with as well. That determines what's in focus and what's not.
Here's an example of the effect of different shutter speeds.
Focusing on the background and releasing the shutter as the subject passes through your view finder. This shows the subject in action.
Here's an example of focusing on the subject, panning, and not paying attention to the background. There's not action with the subject except peddling and the spokes in the wheel..
Put away your cell phones, and get out your cameras and have some fun.