The simple division of barbell bars in China can be divided according to the following specifications:

1, length: 1.2, 1.5,1.8,2.2 (never seen a longer one).

2. handshake diameter: 25mm? 28mm？ 30mm 32mm 50mm(50% is only seen on Taobao, which is a special strength weightlifting pole) The Olympic weightlifting pole is 28mm, but at present, it is more than 30mm or 32mm in China. In order to increase the safety load, 25mm is obviously a low-end contraction pole.

3. Shape: straight rod, snake-shaped bent rod, super-bent rod, annular hard pull rod, convex squat rod and short annular arm training rod.

Extended data:

Standard barbell: It consists of barbell bar (bar), barbell piece and clip. International weightlifting competitions must use international standard barbells recognized by the International Weightlifting Federation, including men's barbells and women's barbells. The difference is mainly in the barbell bar, and the barbell piece is a standard. Men's barbell bar is 2.20m long and weighs 20kg, while women's barbell bar is 2. 15m long and weighs 15kg.

Each clip weighs 2.5 kilograms. The rule of adding barbell pieces is that the inner side (added first) is heavier than the outer side (added later), that is, the weight is added to the inner side and the weight is added to the outer side. Because the weight of the clip is 2.5 kg, it is necessary to add small barbell pieces below 2 kg (including 2 kg) outside the clip, and each side of such small barbell pieces is limited to 1 piece.

Baidu encyclopedia-barbell