re:  I didn't see that size listed for the 61 series

The "80" is seldom included because it is the default value.  That is,
185 R14C AGILIS 61 TL 99R is indeed 185/80-14.

re:  Why all this emphasis on the word 'reinforced'?

When a "passenger" car tire is modified for heavy duty use, it is
labled "reinforced."  (This is mostly applicable with European
tires.)  This describes the MX and MXL and MXT.  "Truck" tires are
normally rated by load range, such as "C," "D," etc.  As visible
above, the Agilis is a "C" truck tire.

A previous poster quoted a Michelin rep as saying the MX is probably
better, and I agree.  European truck tires are pretty stiff, and I
think comfort and handling are definitely second priorities.  If you
really want snow tires, "D" snows are available at
http://www.nokiantires.com/  This is hard to use:  click "light
truck," then when that page loads again click "light truck" (on the
left); then click "commercial," and finally click "Hakkapeliitta10C."