TECHNICAL SPECIFICATIONS: #41 roller chain, 1/2" pitch, 239 links, roller diameter 7.7 mm, inner width 6.38 mm, plate thickness 1.2 mm. ISO-CERTIFIED PRECISION: Designed in line with ISO 9001-2000 standards for reliable operation in compact and lightweight power transmission systems. STRONG & RELIABLE: Delivers 6.7 kN average tensile strength and 2.01 kN working load for dependable performance in lightweight systems. EASY INSTALLATION: Includes 2 free connecting links; chain can be shortened or extended for precise application fit. DURABLE CARBON STEEL: Designed for smooth, low-friction movement with long-lasting resistance to wear and corrosion. ✅GERMAN DESIGN: CHR, a specialist in power transmission components, is trusted worldwide for technical accuracy and performance durability. The CHR #41 roller chain is an ISO 9001-2000 certified, industrial-grade carbon steel chain designed for compact mechanical systems and small engine power transmission. With a total length of 10 feet (239 links) and 2 free connecting links included, it offers flexibility, strength, and ease of installation. Featuring a 1/2" pitch, 7.7 mm roller diameter, and a 6.38 mm inner plate width, this chain delivers smooth motion and high wear resistance. Built with a 3.58 mm pin diameter, 13.6 mm pin length, and 1.2 mm plate thickness, it provides 6.7 kN average tensile strength and supports up to 2.01 kN working load. Ideal for use in mini bikes, go-karts, bicycles, power transmission systems, and industrial equipment. It can be resized as needed using standard tools.