Feature: 1. Made of high-quality aluminum alloy material, durable and sturdy, with a long service life. 2. The rim adopts an asymmetrical design, allowing for even tension distribution without deformation. 3. Enables faster wheel assembly, high performance, ideal as a replacement part. 4. Suitable for bicycles with 20-inch wheels and compatible with 20x1.5 and 20x1.75 tire sizes. 5. Designed for 28-spoke installation, features thickened rims, universal fit for bicycles and electric bicycles. Specification: Item Type: 28 Holes Rim Material: Aluminum Alloy Color: Silver Black Size: 20 inch Outer Diameter: Approx. 41.8 cm / 16.5 in Inner Diameter: Approx. 37 cm / 14.6 in Height: Approx. 2.5 cm / 1.0 in Weight: Approx. 386.0 g / 13.6 oz Number of Holes: 28 holes Compatible with bicycle models using 20x1.5 and 20x1.75 tires Fits 20-inch bicycles Package List: 1 x 28 Holes Rim Note: Please allow 1-2 cm error due to manual measurement. 28 holes require 28 spokes. Check tire size and spoke count before purchase. This is a thickened rim, suitable for various bicycles and electric bikes. Spoke length depends on rim, hub, and lacing pattern. If existing spokes are not compatible, adjust lacing method or purchase new spokes.