BEHIND THOSE BAGS
THE MOTOR POWERING BMW’s new baggers is essentially unchanged. Measuring 107.1 x 100mm, for a capacity of 1802cc it’s an air/oil-cooled wetsump eight-valve OHV design weighing a hefty 110.8kg (dry) including the twin 48mm throttle bodies, rising to 155kg complete with the drive train.
The large cast aluminum three-ring pistons with dished crowns which comprise part
