how do you read tire pump gauge

[mason79]

i've have this zefal bike tire pump for years and can't figure out which scale to look at the bar outer dial, what ever that means then theres the lb/in square in red on the inner dial,

i was never sure the in/lb always seems too high

so don't laugh, please confirm

[TopCatGr58]

Gonna pump you up!

Hey Mason,

Just did a quick search, there is a ZEFAL web site, but it's hard to find actual user instructions that show a good close up of the dial. Also, there are MANY different styles, bike/ floor, etc.!

However, the lb/in should be the correct scale=PSI! These are bicycle tire pumps, and they have a higher scale due to the higher pressures that bicycles use vs. motorcycles, but the accuracy of the scales should be the same!
T.C.

[mason79]

thanks t c i douby if this model still exist, circa 1987, but i use it for pumping chores thanks again