🚴♂️ Gear Up for Adventure! Sleek dimensions of 3.75 x 3.75 x 0.25 inches. Designed for quick and hassle-free setup. Crafted by Shimano for unmatched reliability. Weighs only 1.6 ounces for effortless cycling. Fits 3-tabbed coaster brakes & internally geared hubs. Lightweight at 1.6 oz Compatible with 1/8" & 3/32" Chains 23T Gear Size The SHIMANOSG-3C40 Nexus Sprocket (23T) is a high-quality, lightweight sprocket designed for versatility and performance. It fits various coaster brake and internally geared hubs, accommodating both 1/8" and 3/32" chains. With its compact dimensions and precision engineering by Shimano, this sprocket is perfect for cyclists seeking reliability and ease of installation.