Basic Posture
Height of saddle: The proper height of saddle is that the knees are just barely bent at the bottom of the pedal stroke. It can reduce fatigue of knees.
Upper body: To minimize road shock, you have to bend your back approximately 30 degrees. And keep the center of gravity in the middle of hands.
Elbow: Bend your arms slightly, it can reduce the shock.
Pedaling Posture
Don't spread your legs. It looks strange and causes muscle ache. I recommend keeping your legs parallel and trying to press down the pedals vertically.
Best Riding Courses in Seoul
1. Han-river bike path
Around Han-river, the longest and best bike path network is constructed. Also, it was connected with other bike path like Jungrang stream bike path. It has a great view, especially night view is amazing!This is good for beginners because there are small altitude variations and a low risk. Further if you have no bicycle, there are some bicycle rental centers. But it is crowded with people weekends.
2. Jungrang stream bike path
If you start at Han-river, there are two choice. First is course along Cheonggye stream. It is 17km course(a round-trip) and there is Hanyang University. The other is to Uijeongbu. It is 62km course. These days, there are some road constructions, so it's dangerous to riding at night.
3. Buam-dong
Buam-dong is really attractive place. There are old and new buildings coexisting with nature. Although it is known as good date course, it is good for bike riding too. The Bugak Mountain Highway is best downhill course. Because it is high level course, you'd batter have safety equipment and ride MTB or hybrid bicycle.
Tip
This classic bicycle looks beautiful. But If you'r purpose is exercising, it's not proper. Because it makes your back straighten and puts stress on the back.