Measuring as above, I have nearly 124cm to cupboard side - there is about 1cm giggle room but, once you start eating into this, operating the handles to flip (located on the passenger side of the seat) would be very difficult. Also, whilst the bed frame and seats are 120cm, the handle adds around another 2cm to the width at the point being measured above, consequently, if you have less than 122cm to play with, measured from the C pillar, it's fair to say a 120cm RIB wont fit.