The Optibelt VB101800 V-belt, also known as Z 71 S=C, is a high-performance trapezoidal belt with a Z/10 profile. It features an internal length (Li) of 1800 mm, an effective length (Lp) of 1818 mm, and an outer length (La) of 1830 mm. With a top width of 10 mm and a height of 6 mm, this genuine Optibelt component is designed for reliable power transmission in various agricultural and industrial machinery. The S=C standard ensures consistent dimensions for use in matched sets, providing optimal performance and extended service life.