What is the classification of fishing rod length specifications?

1, sea rod its length is generally 1.6 meters, 1.8 meters, 2.1 meters, 2.4 meters, 2.7 meters, 3.0 meters, 3.3 meters, 3.6 meters, 3.9 meters, 4.2 meters, 4.5 meters, 4.8 meters, 5.4 meters, 6.3 meters, 7.2 meters.

2, stream rod rod length is generally 2.7 meters, 3.6 meters, 4.5 meters, 5.4 meters.

3, the length of the hand rod is generally 2.1 meters, 2.4 meters, 2.7 meters, 3.0 meters, 3.3 meters, 3.6 meters, 3.9 meters, 4.2 meters, 4.5 meters, 4.8 meters, 5.4 meters, 6.3 meters. Common rod lengths are 3.6m, 4.5m, 5.4m; non-standard ones are 2.1m, 2.4m, 2.7m, 3.0m, 3.3m, 3.9m, 4.2m, 4.8m.

4, iso rods are usually 4.5 meters, 4.8 meters, 5.4 meters, 6.3 meters, 7.2 meters.

Selection

Divide a rod in 10 equal parts and hold it horizontally. When it is lightly stressed, observe its bending: the tangent point of the arc formed by the bending part of the rod should be at the position of 2/3 of the whole rod. The rod is bent in 3 equal parts and straight in 7 equal parts. This type of rod tuning we call "hard tuning rod" or "three seven tuning rod".

Extra stiff rods: When the rod is slightly stressed, observe the bending: the curvature of the bent part of the rod should be at the position of about 1/4 of the whole rod. The rod should be bent in 2 equal parts and straight in 8 equal parts. This kind of rod tuning we call "super hard tuning rod" or "two eight tuning rod".