« on: Yesterday at 01:22:51 »
The effort that your legs exert on the pedals is transferred to the back wheel by the chain as you ride a bicycle. This force has the ability to do one of three things.I have been over this before. The rotation of the bike is countered not only by the gravity of the rider who is forward of the rotation point, but the force on the pedals. When going up hill the strain becomes evident, much effort yet not travelling much distance, eventually the bike does not move and the rider is static whilst applying force to both pedals.
1. Push the bike ahead by rotating the wheel against the surface it is on.
2. Pull the bike into a wheelie by rotating the frame upwards around the pivot of the wheel. This may be seen in the practice of pulling a wheelie, which involves lifting the handle bars slightly and rotating the rear wheel with the pedals, resulting in a simultaneous forward and upward push, resulting in a wheelie. In such a case, the rider's weight may cross the pivot axle of the back wheel.
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