Hutchinsons New Speed Revolution! Hutchinson raises the bar with the Blackbird Racing Lab, the fastest tire ever developed. Featuring the advanced Mach Tread 3.0 compound and SwiftEasy construction, experience 10% less rolling resistance, a 15% wider tread band for superior grip, and unmatched durability, with over 4000km+ of performance. Handcrafted in France, because every detail matters.