The designers of Chain-L No. 5 took a different approach to formulating the ideal chain lubricant. While properties like external cleanliness may seem important, the fact is that internal wear of the 112 overloaded, overworked, and overlooked bearings is what destroys chains. A road cyclist, riding first-tier equipment, will typically wear a chain out in as little as 50 hours of use -- often destroying the cassette or chainrings in the process. On a high-end bike, drivetrain wear is the most expensive maintenance cost per mile.
That's why, when developing Chain-L, they approached it as a bearing-wear problem and formulated it consistent with the theory of how chains wear and how best to combat it. They then road-tested with racers, messengers, shop staff, and others; refining it over the span of almost a year before they began selling to the public in the fall of 2007.
Sold in a 4-ounce bottle.
See www.chain-l.com for more information and application instructions.