Did some checking on the Maxbmw?website and found the following:
The plastic turn signal housings are all identical over a wide range of models.
The turn signal stalks are different between the R90S and the R90/6 and have different part numbers and are identified as a "shorter" item. Based upon the pictures, it doesn't appear that you can achieve a 1-5/8 inch tube length?on the R90/6 items although I can't be certain of this. The R100S uses?the same items as the R90S, which I suspected.
