This Fits Your 2013 BMW F800ST
Full size assembly image of tank-top bag (1/1)

tank-top bag

K25: R 1200 GS 04 (0307,0317): (2003-2008)
K255: R 1200 GS Adve. 06 (0382,0397): (2005-2008)
K255: R 1200 GS Adve. 08 (0380,0390): (2007-2010)
K255: R 1200 GS Adve. 10 (0470,0480): (2009-2014)