Feature:1. The double layer rims is made of the highest quality aluminum alloy for long lasting.2. It has been tested for durability. Suitable for bicycles with 16 inch rims.3. The rim adopts an asymmetrical design to form a rim, so that the rim distributes tension evenly without dents.4. The wheel can be assembled faster, easy to install and disassemble.5. First look at the tire size, then count the number of spokes. The rims are thickened rims. Bicycles and electric bikes are common.Specification:Item Type: Bicycle RimsMaterial: Aluminum Alloy Color: As Pictures Shown Product Size: Approx. 16inWeight: Approx. 324g/11.4ozNumber of Holes: 36 Holes (36 Holes Means that 36 Spokes Can Be Installed)Spoke Size: 14gExternal Diameter: 32cm/12.6in Inner Diameter: 26cm/10.2inHeight: 2.5cm/1inSuitable for Bicycle 16x1.5in and 16x1.75in Tire ModelsRim shopping guide:1. Confirm the tire size2. Count the number of spokesThe length of the spokes is determined by the rims, hub and braided method (the length can be varied). Therefore, if the spokes are not suitable for the original spokes, they can be adjusted by braided 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 knife ring is just a customary name of people, because the outer surface of the ring (against the hub side) is relatively high, like a knife, so it is known as the knife rim.Material: Aluminum alloy material, multiple heat treatment, high strength, with 10 years without deformation..Package List:1 x Bicycle RimNote:1. Manual measurement, please allow 12cm 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.5. Please note that the new type and old type of this product will be sent randomly,and make sure you will not mind before ordering.