Abstract: A tire pressure gauge for a bicycle is provided. The tire pressure gauge is fastened to an air valve and includes a connector assembly and a gauge assembly. The connector assembly includes a main body and an air-tight member. The main body includes a front member and a connecting member. The main body includes an opening portion, a first thread hole, and an accommodating channel, in which the opening portion and the first thread hole extend inwards, and the accommodating channel is disposed between the opening portion and the first thread hole. The gas-tight member is disposed in the accommodating channel by passing through the opening portion. When disposed in the accommodating channel, the air-tight member can be squeezed by the inner surface of the accommodating channel, and a gap exists between the air-tight member and the accommodating channel in the axial direction.

Abstract: A tire pressure gauge for a bicycle is provided. The tire pressure gauge is fastened to an air valve and includes a connector assembly and a gauge assembly. The connector assembly includes a main body and an air-tight member. The main body includes a front member and a connecting member. The main body includes an opening portion, a first thread hole, and an accommodating channel, in which the opening portion and the first thread hole extend inwards, and the accommodating channel is disposed between the opening portion and the first thread hole. The gas-tight member is disposed in the accommodating channel by passing through the opening portion. When disposed in the accommodating channel, the air-tight member can be squeezed by the inner surface of the accommodating channel, and a gap exists between the air-tight member and the accommodating channel in the axial direction.