UltraFast Optimization Shimano Dura-Ace 11-speed Chain
The draw: Newfound speed saver
UltraFast takes a standard chain and strips the factory coating, retreating it with a paraffin wax and Teflon PTFE powder application. This time-intensive, 21-step process results in a power savings of about 2 percent, according to Ultra Fast’s research. The downside is that the coating only lasts for about 200 miles. While $89 may seem exorbitant for a chain, it’s a bargain considering the potential speed boost on race day.