When I damaged my spine I was incontinent for 10 years, at first I had a catheter, I tried it with the leg bag, but didn't like it so bought a length of tubing that went down the my foot and had a “flip flow valve” at the bottom, all I had to do was release the valve and empty my bladder every 15-20 minutes or so.
Later I started to get UTI one after the other and had to give up catheter's and go back to nappies, cycling was never the same after that, but two operations and a few years later, I'm fine now.
Good luck