Is the term "24 inch gear" universal (in the context of fixies)? Recently the group I ride with has included more fixie riders than I'm used to, and there's a phrase which was initially puzzling but makes perfect sense: the 24-inch gear.  I've hidden the meaning under a spoiler so readers get the experience I did.


   24 inches is two feet, i.e. walking. (we have lots of hills, some quite steep)


I think we're all familiar with the term "gear inches" to describe the equivalent diameter of a directly driven wheel - this question is specifically about the 24" gear (not low gears in general as you'll see if you look at the spoiler). 

Other experienced riders, including those with fixed-gear experience hadn't come across it, and it doesn't seem common on the web (most hits are UK long-distance riders like the ones I ride with, but there are lots of sales of bikes with gears and 24" frames to bury the hits).  Is this a universal term, or localised?
&quot;Gear inches&quot; is universal enough to have a Wikipedia page:

Gear inches is one of several relative measures of bicycle gearing, giving an indication of the mechanical advantage of different gears. Values for 'gear inches' typically range from 20 (very low gearing) via 70 (medium gearing) to 125 (very high gearing); as in a car, low gearing is for going up hills and high gearing is for going fast.
'Gear inches' is actually the diameter in inches of the drive wheel of a penny-farthing bicycle with equivalent gearing.