Got me curious, so I dragged out the parts list for the 750, K1 and K2. The drawing shows the same lens for all three and the list shows 33702-077-671 LENS, tail light (HM-11RC) across all three columns.
However, there are two other lines on the list where the middle #'s are 302 and 323 respectively and each has a note "(Used in E.D.)" Anyone know what the reference to E.D. means?