2007 Triumph Rocket III Classic which size progressives?

Kim Turner

.040 Over
Joined
Jan 16, 2009
Messages
85
Location
New Mexico
Ride
2007 triumph Rocket III Classic
11.5, 12, or 13? Correct direct replacement progressive shock size for the above. "Slightly" vertically challenged, so a small drop in seat height would be ok, but I don't want my ass dragging on the ground!
Thank you
 
Neither.
Stock is 12.5" and go with the 444s.