Patent ID: 8905473

Claim:
A seat adjusting module, suitable to connect a saddle and a seat tube of a bicycle, wherein the saddle comprises at least a seat rail; the seat adjusting module comprising: a base, suitable to be assembled to an end of the seat tube; a clamp unit, comprising: a first clamp element, having at least a first clamp portion and a shaft portion, wherein the shaft portion is matched to the base at a first position, the shaft portion rotates on a first rotation axis relative to the base, when the shaft portion is matched to the base at a second position, the shaft portion rotates on a second rotation axis relative to the base, and when the axis on which the shaft portion rotates is changed from one of the first and second rotation axes to the other of the first and second rotation axes, the clamp unit is completely reversed relative to the base; and a second clamp element, having at least a second clamp portion, the first clamp portion and the second clamp portion together clamping the seat rail; and a fastening unit, comprising: a first fastener; and a second fastener, the first fastener and the second fastener together fastening the first clamp element and the second clamp element to the base so that the first clamp portion and the second clamp portion together clamping tightly the seat rail.