Disappointment and Failure of a Supposedly No Maintenance and Lifetime Chain

In this chapter, the speakers discuss the disappointment and failure of a supposedly no maintenance and lifetime chain created by BMW in collaboration with Regina. They explain how a friend of theirs tested the chain by riding over 12,000 miles and found that it quickly deteriorated. They mention the TAC coding on the bushings and rollers, which was supposed to act as a dry lubricant. They also mention the change in claims from BMW, now stating that it is a low maintenance chain rather than a no maintenance and lifetime chain. They plan to disassemble the chain and perform an autopsy to measure its components.