Forward and backward slidable saddle assembly for bike

A forward and backward slidable saddle assembly (100) for a bike, comprising:

• a bottom board (3) adapted to be mounted on a carrier (1) of the bike;
• a slidable plate (4) slidably mounted on the bottom board (3), formed with a pair of parallel channels (41) spaced from each other by a distance, the pair of parallel channels (41) extending in a front-rear extension direction (M1);
• a securing assembly (5), including:
• a plurality of screw rods (51), which extends, in a direction from a lower side toward an upper side, through the pair of parallel channels (41) of the slidable plate (4) to have top free ends (52) of the plurality of screw rods (51) projecting out for a height;
• and
• a plurality of fixing pins (53) respectively seated in the parallel channels (41) and fastenable to the top free ends (52) of the plurality of screw rods (51);
• and
• a saddle body (6) mounted on the slidable plate (4);
• wherein when the saddle body (6) is moved by a user in the front-rear extension direction (M1), the slidable plate (4) is constrained by the securing assembly (5) from detaching from the bottom board (3) in an upward/downward direction while allowing the pair of parallel channels (41) of the slidable plate (4) to move relative to the plurality of fixing pins (53) in the front-rear extension direction (M1) to have the slidable plate (4) together with the saddle body (6) moving relative to the bottom board (3) in the front-rear extension direction (M1).