YAMAHA TDM 850 [1991-2001] - Z-ring chain with rivet closure

The Regina 525 HPE Z-Ring chain with rivet closure sets new standards in the performance and durability of motorcycle chains. This advanced chain eliminates the need for regular lubrication that motorcyclists typically have to do every 1,000 km. Extensive tests in the laboratory and on the road have proven that the HPE chain has a service life that is at least equivalent, if not longer, than conventional, regularly lubricated Z-ring chains.

An outstanding feature of this chain is the coating with Tetrahedral Amorphous Carbon (ta-C), one of the most advanced coatings from the group of DLC (Diamond Like Carbon) coatings. This coating is applied to the surface of the chain's bushings and rollers 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 the need to clean and lubricate the chain not only minimizes maintenance, but also minimizes environmental impact. The innovative ta-C coating technology was developed through intensive research and development work by Regina engineers in Italy. This chain is ideal for motorcyclists who value performance, efficiency and environmental protection.