It is closer to 25 miles per burrito

There is a bicycling t-shirt that pops up periodically that says, 53 miles per burrito.

I did some calculations yesterday, and concluded that that mileage is incorrect. I rode 127 miles in 10 hours total time, for an average total speed of 12.7 miles per hour (includes stops). I find that I do best if I eat like clockwork - one burrito or equivalent every two hours. So 2 hours * 12.7 mph = 25.4 miles per burrito.