It is ideal to use a cadence of more than 100 rpm and a relatively low gear. For example, on an 18-speed bike, place it in low and sixth, low being the smallest gear by the pedals and sixth being the sixth gear outward from the rear wheel.
Thus the time period for becoming a lawyer after high school graduation is as follows: 4 years for undergrad + 3 years of law school + 6 months for bar study, passing, swearing in.
To become a lawyer in Germany, you have to study law at university for four or five years. Then you have to pass the First State Examination (Erstes Staatsexamen) in Law, which is administered by the ministry of justice of the respective state; the university administers only a little part of the examination.