Begode Falcon Velcro Extender Pad

Requires either 3 heat-set inserts and 8-15mm m3 bolts, or 20-25mm m3 bolts threaded directly into the plastic.  For best adhesion of the velcro, iron the top surface of the print using your slicer's ironing settings.  For even better adhesion, flame-treat the top surface for best adhesion.  If you have a torch it takes only a few seconds and doesn't actually melt the plastic.  

Bonus: Has air-inlet ports that help keep mud and water from being flung-forward at low-mid speeds, and works as a front side kickstand if you're like me and don't want the folded handle to get dirty setting it down.