BMW utilises unique battery sizes not interchangable with Japanese models
BA KTZ19-S - European # 51913 or 51814
Powerful 19 amp hour, fully sealed battery for 'K' and 'R' series BMW.
Measurements: 181 mm x 76 mm x 167 mm
Suits: K1200, K1300, R1100, R1150, R1200, R75, R80 all models
Alternate 30 amp hour fully sealed battery. No maintenance, high power battery.
Measurements:166 x 126 x 175
12 amp hour maintenance free.
Measurements: 150 x 87 x 145
Suits: K1200S '05-10, R1200GS '05-10, F650GS '09-10, F800GS '09-10
BA YB12AL-A (NOTE: no acid supplied with this battery type)
12 amp hour battery
Measurements: 134 x 80 x 160
Check out the Koyo Application Book below for more models