Seat height alone will not determine comfort but it is a guide, until we mere mortals can throw a leg over and see for ourselves what fits. My quick research tells me that a 2012 survey identified to following heights: BMW G650GS – 30.7 R1200GS low seat, low suspension – 31.1 F800R low seat – 30.5 K1300S low seat – 31.1
Read our in-depth expert 2017-2018 BMW R1200GS review on MCN - it's a diverse range, but hugely capable both on and off road. longer struts and extended travel that push the seat height to I8Qge7r.