equivalent to

looking for a new tire for rear. not all tire makers list sizes as MU85/16 and
MT90/16.

MU85/16 is the same as ?.

MT90/16 is the same as ?.

05 Ultra so how wide and or how tall could i go without any mods or difficulties?

 

MU85=140 80 MT90=130 90 Your Ultra came with a 140. Might get a 150 on it.

 

Harley Davidson Community

 

Harley Davidson Community This might help:s

 

Jack; I got an "invalid" message when I clicked link in your post.
Here's a cut'n past from Dunlop site. Sorry the nice format didn't transfer.

FRONT TIRES
METRIC ALPHA INCH
80/90 MH90 2.50 to 2.75
90/90 MJ90 2.75 to 3.00
100/90 MM90 3.25 to 3.50
110/90 MN90 3.75 to 4.00
120/80 4.25 to 4.50
120/90 MR90 4.25 to 4.50
130/90 MT90 5.00 to 5.10
REAR TIRES
METRIC ALPHA INCH
110/90 MP85 4.00 to 4.25
120/90 MR90 4.50 to 4.75
130/80 5.00 to 5.10
130/90 MT90 5.00 to 5.10
140/80 5.50 to 6.00
140/90 MU90 5.50 to 6.00
150/80 MV85 6.00 to 6.25
150/90 MV85 6.00 to 6.25