For me I've basically skipped refreshing the included tire kit/inflator. Ulterior motive for that being I found mine had an air leak somewhere and wouldn't get up past around 20 psi. Instead I just got a cheap tire inflator from the local big box store. Slime branded model that also has a digital pressure readout and auto-stop once it reaches your set pressure. Then just a simple tire plug kit to go along with it. Both are small enough to stash under the lip in the cargo area on my Energi and the old space under the passenger seat is now open for extra storage.