Old thread on here gives this info (post 22); although i would assume they may have meant M10, not M12
Upper Shock Bolt = M12 x 1.5 x 60mm
Lower shock Bolt = M12 x 1.75 x 75mm
07129907435 was used from 10.14/2015 and superseded 07119903288
07129907435 is used on these bikes;
K25 (R 1200 GS) (12/2002 — 12/2012)
K25 (R 1200 GS Adventure) (03/2005 — 07/2013)
K26 (R 900 RT, R 1200 RT) (11/2003 — 06/2014)
K27 (R 1200 R) (11/2005 — 07/2014)
K28 (R 1200 ST) (05/2003 — 11/2007)
K29 (R 1200 S, HP2 Sport) (11/2004 — 07/2010)
K21 (R nineT) (01/2013 — 12/2019)
K22 (R nineT Pure) (12/2015 — 12/2019)
K23 (R nineT Scrambler) (09/2015 — 12/2019)
K32 (R nineT Racer) (12/2015 — 07/2019)
K33 (R nineT Urban G/S) (03/2016 — 12/2019)
K48 (K 1600 GT, K 1600 GTL) (01/2010 — 12/2019)
K61 (K 1600 Bagger) (01/2017 — 12/2019)
K71 (F 800 S, F 800 ST, F 800 GT) (12/2004 — 09/2016)
K73 (F 800 R) (12/2005 — 09/2019)
R21 (R 1150 GS) (09/1998 — 11/2003)
R21 (R 1150 GS Adventure) (07/2001 — 09/2005)
R28 (R 850 R, R 1150 R, Rockster) (11/1999 — 07/2007)
R22 (R 850 RT, R 1150 RT, R 1150 RS) (01/2000 — 03/2006)