ExNotes Review: UABRLA Tire Inflator

By Joe Gresh

There’s a reason we call this pump a tire inflator instead of an air compressor. The thing is pretty small to start with and half of that size is battery to power the thing. Don’t expect to run your 1/2″ air impact wrench with the UABRLA is what I’m trying to say in an original, thought-provoking manner.

I have a small, 12-volt Slime brand tire inflator that I carry on whichever bike I’m riding. It works well and is like 15 years old now. The main issue (I hate to say problem because it’s more of a design limitation) is that you have to connect it to the motorcycle’s battery. On the RD350 that’s not a big problem but on some bikes, like the ZRX1100, the battery is buried under a bunch of junk I store on the bike. You have to remove the dirty socks, chucks of broken concrete, a dried up Sharpie marker and last year’s Laguna Seca vintage racing schedule. That gains access to the battery door, then you have to slide the battery out to access the terminals.

For airing up bike tires in the shop I use a larger 12-volt compressor (it has some grunt) and a 12-volt car battery.

I bought the UABRLA because I sometimes forget on which bike the Slime pump is stored. I’ve ridden off to the hinterlands thinking I had flat tires covered yet the Slime was packed away on a different motorcycle.

You’re probably wondering if I’ll ever get to the UABRLA review.

The UABRLA was delivered from Amazon in only two days.  That’s pretty fast considering where I live. It came with a hose for connecting to tires, a charging cord, a 12-volt cigarette adaptor so you can keep filling tires even if the built-in battery is dead and a little collection of adapters for beach balls, inflatable mattresses and New England Patriots footballs. A handy tote bag is included. The unit also has a flashlight and a USB port for charging small electronics. The flashlight has three modes: on, on-strobe, on-SOS. Four modes if you count off.

The inflator has presets for car tires, motorcycle tires, bicycles and sports equipment. I can’t see the need as air is air but maybe if you were a complete novice it would help.

A nice touch is the auto-shutoff that kills the inflator when the tire reaches a preset pressure. The setting is pretty accurate being only a pound or two off when checked against a pencil-type gauge. Or maybe the pencil gauge is off. Regardless, I can’t tell a tire is low until the rim scrapes the ground.

The built in battery supposedly has 20,000 mah capacity but I can’t be bothered to test that. I filled up two bicycle tires and topped up 6 motorcycle tires with the little inflator and it was still showing 2 of 4 bars. I’m guessing you could fill one car tire with the built in battery. After that you’ll have to switch to the 12-volt cigarette adaptor.

Anyway, I wouldn’t use this machine for car tires. Maybe adding a few pounds would be ok. My experience with these little inflators is that they get hot if you run them too long so I’d let it cool a few times if you’re filling a 40-inch tall muddier tire.

One thing I would like different is a 90-degree air chuck instead of the straight chuck that comes with the UABRLA. It gets a little tight on some motorcycle wheels.

The UABRLA is a nice-looking bit of consumer glitter. I’ll be tossing this pump into my motorcycle travel kit and hopefully it will last more than one or two uses.

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