u/ewtotem

I currently enjoy a Honda HRN216 VKAA and need a new handlebar. I'm looking at there VKAA parts list (Honda power products site) and see an interesting assortment (part #5):

53111-VR8-D00ZA $224.10
53111-VR8-M00ZA $474.68
53111-VR8-N00ZA $321.10
53111-VR8-U00ZA $283.30

My model is the basic self-propelled unit that needs the handlebar with the holes/indentations for the Smart Drive lever. I noticed the push only version PKAA has the same parts list. Does anyone know the inside baseball on the differences between theses handlebar versions (and massive price differences)?