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 a thickened rim construction, suitable for various bicycles and electric bikes. 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 wheel bicycles. Package List: 1 x 28 Holes Rim Note: Please allow 12 cm (0.40.8 in) variation due to manual measurement. 28 holes require 28 spokes. Check tire compatibility and spoke count before purchase. This is a thickened rim, universally compatible with standard bicycle and e-bike setups. Spoke length depends on rim, hub, and lacing method. Multiple spoke lengths may be compatible. If original spokes do not fit, adjust lacing pattern or replace with appropriately sized spokes.