Hybrid resistance adjustment system

A hybrid resistance adjustment system used on an exercise bike which has a frame and a flywheel mounted on the frame, the hybrid resistance adjustment system comprising:

• a resistance assembly mounted on the frame and having
• a mounting seat pivotally connected to the frame;
• a brake pad mounted on the mounting seat;
• at least one magnetic set mounted on the mounting seat and each of the at least one magnetic set having two magnetic elements respectively located on opposite sides of the flywheel;
• and
• a restoring spring mounted on the frame and connected to the mounting seat, the restoring spring being capable of driving the mounting seat to return to an original position;
• a manual adjustment assembly mounted on the frame and having
• a shaft being linearly movable to the frame and selectively pushing directly on the mounting seat of the resistance assembly to simultaneously make the brake pad abut against the flywheel and make the at least one magnetic set approach the flywheel;
• and
• an electronic adjustment assembly mounted on the frame and having
• a linearly movable component moving linearly relative to the frame;
• and
• a motor connected to the linearly movable component and selectively driving the linearly movable component to move linearly and push directly on the mounting seat of the resistance assembly to simultaneously make the brake pad abut against the flywheel and make the at least one magnetic set approach the flywheel.