We will be very concerned about the newly bought mountain bikes, be careful, and touch this and that. If you are careful, you will find that the decals on the bicycle rims are very beautiful, but what are the numbers on them for? Is it a simple decoration? See the picture below.
The 559 on the rim refers to the outer diameter of the rim, that is, it can install bicycle tires with an inner diameter of 559 mm, which is simply what we often call 26 inches. What about the next 20? This is the width of the rim.
What about 6061H-T6? 6061 refers to the material model used for the bicycle rim, which is made of 6061 aluminum alloy, and T6 is a hardening process of aluminum alloy. That is to say, the standard of this rim is 559*20, and the material and process are 6061-T6.
The front is easy to understand. The standard of the bicycle rim is 559*18, 559 is 26 inches, 18 is the width of the bicycle rim, and 6061 is the aluminum used for the bicycle rim.
What about ERD540MM? It is the distance between the bicycle spoke and the opposing bicycle spoke. The greater the distance, the greater the force on the bicycle spoke, and the higher the strength of the woven bicycle wheel set, the greater the impact force.
The width of this bicycle rim is 36 mm, see the T10 above?This is the current top hardening process in the bicycle rims.
Bicycle rims of this level of width and hardness are used on downhill and cross-country bikes.
The relationship between the width of bicycle rims and tires.
The width of the rim is about 50%-65% of the tire width.
Post time: Dec-13-2022