YAMAHA TDM 850 [1991-2001] - Z-ring chain

Discover the innovative and revolutionary Z-ring chain from Regina, specially developed for high performance and endurance (HPE). This chain sets new standards in the motorcycle industry by eliminating the need for regular relubrication, which is typically required every 1,000 km. Extensive laboratory and road testing has proven that the service life of the HPE chain is at least equivalent to, if not greater than, that of a traditional, regularly lubricated Z-ring chain.

An outstanding feature of this chain is the coating tetrahedral amorphous carbon (ta-C), one of the most advanced coatings among the DLC (Diamond Like Carbon) coatings. This coating is applied to the surface of the bushings and rollers of the HPE chain and reduces energy losses while increasing efficiency in the secondary drive. The extremely high hardness of the coated surface combined with a low coefficient of friction results in improved performance.

Eliminating chain cleaning and lubricant splash during operation minimizes environmental impact. This innovative coating process was developed through intensive research and development work by Regina engineers in Italy. Regina's HPE chain is an excellent choice for motorcyclists who value performance, durability and environmental protection.