Wheels are an essential part of everyday life as a wheelchair user.
Maintaining tire pressure once a week is a good idea.
Invest in a good pump!
I replace my wheels once a year and I would use them ALOT outdoors!!
Solid tires may be less maintenance but in my experience are too hard on frequent long distance outdoor use compared to air filled wheels.
Front casters are supplied by the HSE and should be changed every six months or as required.
Remove hair and dirt from front casters once a week from optimum performance.