Whats the real benefit of slapping a DLC coating on a chain for road bikes? Is it just a marketing gimmick to make cyclists feel like theyre getting a high-tech advantage, or are there actual performance gains to be had?
Im not buying the whole reduced friction and increased durability sales pitch without seeing some hard data to back it up. If a DLC-coated chain is really that much better, why arent we seeing it on every pro teams bikes?
And lets be real, who exactly is this coating supposed to benefit? The average recreational rider isnt going to notice a difference, and the pros are already using the best chains money can buy. Is this just another way for manufacturers to separate enthusiasts from their wallets?
Whats the real-world impact of a DLC coating on a chains lifespan, and how does it compare to a high-quality, non-coated chain? I want to see some numbers and testing data, not just empty marketing promises.