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 sinking. 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. Can be installed with 28 spokes; thickened rim design, universal fit for bicycles and electric vehicles. 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 20x1.5 and 20x1.75 tire types Fits bicycles with 20-inch wheels Package List: 1 x 28 Holes Rim Note: Please allow 1–2 cm / 0.4–0.8 in error due to manual measurement. Thank you for your understanding. 28 holes require 28 spokes. Check the tire model and count the spokes before ordering. This is a thickened rim, suitable for most bicycles and electric vehicles. Spoke length depends on the rim, hub, and lacing method. If the original spokes are not compatible, adjust the lacing pattern or purchase new spokes.