Chain design minimizes motorcycle maintenance needs
Engineering360 News Desk | September 01, 2020A maintenance-free motorcycle chain is now available for the BMW Motorrad now offers a maintenance-free chain. The design of the M Endurance chain eliminates the need for lubrication or periodic re-tensioning.
Source: BMW GroupA resident permanent lubricant filling between the rollers and pins, enclosed by X-rings, obviates the need for lubricant addition. An industrial diamond coating applied to the rollers is characterized by extreme hardness and resistance and offers a reduced friction coefficient coefficient where the roller interfaces with the sprocket teeth.
With excellent dry lubrication properties and the elimination of wear, the tetrahedral amorphous carbon coated rollers of the M Endurance chain offer maintenance comfort equivalent to that of a shaft drive motorcycle. This includes all the cleaning work that is unavoidable with a conventional chain due to splashed lubricant.
The M Endurance chain in 525 pitch is now available initially for the two 4-cylinder models BMW S 1000 RR and S 1000 XR. The M Endurance chain is available as accessory or directly from the factory as an option.
They still need lube and cleaning. I don't care what they claim. X-Ring chains have been in the motorcycle market for decades. There is still rolling action between the chain rollers and the sprocket teeth. You want to cushion the rollers as the hit the teeth on the sprockets. When you ride, you can hear that noise from the chain. And also the chain sideplates against the sides of sprocket teeth. Most of the wear is on the faces of the teeth.
https://en.wikipedia .org/wiki/X-ring_cha in