DIY 4 Wheel Inflation System (saves money over COTS versions)

Replacing my R1S Spare Tire (and Kit)

Rivian Mom · 2025-03-08T18:49:39+00:00

Last week, we got the full-size spare tire installed, including the kit. 3 days ago, I got an alert that the driver's size front tire was a little low on air. I aired it back up using the built-in compressor but it kept leaking slowly (~4psi in 12 hours). When we got it jacked up, I saw a little screw just trying to get by. A couple things to note on the process: • The instructions in the tow manual or in-truck manual are excellent and detailed. You are not too manly to read them—take the time and read them to save yourself any grief. I like that they remind you to lower the suspension before removing the spare & kit, then raise it to change it, along with a bunch of other small tips. • Don't forget to completely remove the long bolt holding the tire and jack kit down (which is also explained in the manual)—this takes only a second, and you won't have to worry about damaging the tire. It also makes removing the nearly 100lb tire much easier, as you can just pivot it upright and roll it out of the well. The hex head to remove it is molded into the threaded piece. • If you don't have the manual on you (and once jacked, you can't get back in the cab to read the onboard one), there's a QRCode on the jack and other components you can scan with your phone. This takes you directly to the tow guide PDF—this is an awesome idea, someone should get a bonus for it. • At least for the front wheel, you have to raise the jack almost all the way up to truly get the wheel off the ground. • You have to swap the center cap from the flat tire to the replacement tire. It's not a big deal, though, and can easily be done after everything else. But you probably can't remove that center cap easily while the tire is mounted. • The kit isn't half bad. It was a little hard work, but overall, nothing unbearable since I was in the garage in the shade. Here's some photos of what everything looks like. The tire is off getting patched, but should be an easy fix.

Vincent

Member

Thursday at 5:28 PM

The purpose of creating groups and forums such as Trailrivian is for owners to be able to learn, interact, and engage with each other to solve problems and issues they might encounter as well as sharing ideas on how best to get the most out of their vehicles performance.

With that been said, I stumbled upon this video online were this gentleman figured out a way to build your own kit that works perfectly well for around $100. Hopefully this helps others too. As an added bonus, he shows you how to build a pigtail that converts the silly male output from the truck to a proper pneumatic coupler so that you can connect your typical tools* to the truck.

All of the parts you need are within Amazon links in the description of the video. The video is NOT MINE. I just happened by it and thought I'd share. Hopefully someone else is as excited as I am. Its not the easiest job trying to figure out what adapters, couplers, connectors, and reducers I need. This made it super easy.

DIY 4 Wheel Inflation System (saves money over COTS versions)

Vincent

Member

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