Speedplay users rejoice. Sidi has just crated the ultimate shoes for you. The direct mount of these SP soles on these shoes allow for direct mounting of Speedplay cleats without those pesky adapters. This saves hassle, as well as 48 grams of unnecessary rotating weight. It also puts you 3mm closer to the pedal spindle for more efficient pedaling. All the way around it's two enthusiastic thumbs up.
The Sidi Wire SP upper is constructed of Sidi's proprietary Tecnomicro fabric with a brilliant Vernice finish. This synthetic upper is light, thin and conforms to the skin in a body-mapping kind of way that feels like a second skin. Beyond fit, it's also extremely breathable, stretch resistant and very durable. The upper is secured to your foot with Sidi's brilliant Techno 3 Wire buckle system. The Wire offers up a modern way of micro adjustment through the simple turn of a dial. And while these draw comparison to the BOA closure system due to similar design features, there's nothing similar about them. There is no plastic used in the Wire buckle internals which provide and unmatched tactile action and leverage. The design is absolutely bomber, but in the event they need to be replaced, the entire buckle system can be removed and replaced in a matter of minutes. Two buckles, one located on the instep and the other at the forefoot allow you to vary the diameter and pressure you want on and around your foot. The HSS heel cup tension is adjustable with the turn of a screw to tighten of loosen the heel cup depending on preference.
The Wire SP Carbon shoes uses Sidi's SP Carbon sole. The hand-laid carbon sole is the stiffest and lightest carbon sole to date. And even thought it is stiff, Sidi still provides some engineered flex in the front of the sole located directly under the metatarsal region to provide comfort and relief without diminishing performance. The sole is drilled specifically for Speedplay 4 hole cleats and provides Speedplay pedal users with the best performance option in a shoe.