Compare the Gsxr 600's crankshaft to the Gsxr 1000's

Compare the Suzuki Gsxr 600's crankshaft (below) to the Gsxr 1000's (above). The larger engine has, of course, more stroke, but the other giveaway is the second gear placed on the number-two cylinder's left cheek.
This gear drives the case-mounted counterbalancer.