Feature:1. Made of the highest quality aluminum alloy, multiple heat treatment, high strength, not easily to deform.2. The rim adopts an asymmetrical design to form a rim, so that the rim distributes tension evenly without dents, so that the wheel can be assembled faster.3. The 20 holes bicycle rim means can install 20 spokes.4. It has been tested for durability. Suitable for bicycles with 14 inch rims.5. The rims are thickened rims. Bicycles and electric cars are common.Specification:Item Type: Bicycle RimsMaterial: Aluminum Alloy Color: As Pictures Shown Product Size: Approx. 14inWeight: Approx. 238g/8.4ozNumber of Holes: 20 Holes (20 Holes Means that 20 Spokes Can Be Installed)External Diameter: 26.6cm/10.5in Inner Diameter: 23cm/9.1inHeight: 2cm/0.8inSpoke Size: 14gSuitable for Bicycle 14x1.5in and 14x1.75in Tire ModelsThe length of the spokes is determined by the rims, hub and method (the length can be varied). Therefore, if the spokes are not suitable for the original spokes, they can be adjusted by method. If not, the spokes can only be purchased again.Knife rim, in fact, refers to a kind of strengthened rim, stronger than the ordinary rim. The so-called is just a customary name of people, because the outer of the (against the hub side) is relatively high, like a knife, so it is known as the rim. Package List:1 xBicycle RimNote:1. Manual measurement, please allow 1‑2cm error, thank you!2. The picture may not reflect the actual color of the project due to the differences between different displays.3. First look at the tire size, then count the number of spokes.4. The rims are thickened rims. Bicycles and electric bikes are common.