Latissimus, Forearm, Trapezius, Shoulders, Chest, Triceps, Back
From the hanging position on the bar, arch your back, taking your legs back.
Then make an explosive pull to chest level.
'Roll' your chest over the bar as a transition from a pull-up to a dip.
Press your hands down and drive your body upwards (the dip)
While lowering down, it is important to catch a pulse for the next rep, for this the body needs to be left in suspense