
Good morning, it’s Makita-san here? (*’▽’)
Who? Makita-san…right?
So the other day, a theory came up that the air gauge included with the air pump doesn’t work.
Well, of course. The wheel air valve has a screw-in type…
If you don’t loosen it quickly when removing it, it comes off = ends up lower than expected = motorcycle riders hate this scenario.
I compared it with the commercial-use Asahi Sangyo air gauge Gauge Bottle.

With the Asahi Sangyo genuine attachment I found the other day, it’s now the same shape.
Solid and sturdy. It’s a hard design with zero breakage.
ASAHI Asahi Bike Chuck Short (for Gauge Bottle) C-645
ASAHI P-D48 Conversion Adapter (for C-B62 Socket Chuck Installation) Asahi


The Gauge Bottle (at that time) from over a decade ago… the other one has been in use for 20 years.
It’s reliable and trustworthy Japanese-made (from the good old days).
It seems to have been updated again recently.
Asahi Sangyo Gauge Bottle EX AGE-600 + C-645 Bike Chuck [Body + Chuck Set] (Old AG-8006-4) 2-Wheel Passenger Car Use Asahi Tire Gauge Air Gauge Gauge Bottle age600 c645
If you’re going to buy an air gauge, it’s best to get one made by Asahi Sangyo.
But wait! (*´ω`*)


Today’s investigation is about… air pressure.
First, I’ll pump in 200 KPA with the Asahi Gauge Bottle, then check with the Makita MP181DZ.
*The second check should read slightly lower


Wow! (*´ω`*)195 KPA
That’s pretty good, isn’t it…


Now let me do it the other way around—pump with the Makita MP181DZ and check with the Asahi Gauge Bottle.
Hmm! They’re the same, aren’t they…

I tried it several times and I think you can consider them essentially equivalent.
There’s some error when removing from the air valve, so even accounting for that…
The air gauge is excellent too! Makita MP181DZ
To put it bluntly, it feels like one Makita unit can handle all the air for both bikes and cars…

