Modern Technologies to Make the Most of Your Classic Bike! 50% More Wet Grip Than the Previous Generation: A compound mix incorporating Michelin Silica Rain Technology (SRT), an innovation which combined with a 26% void ratio provides 50% more wet grip than the previous generation. Increased Cornering and Straight-Line Stability Than the Previous Generation: Thanks to its bias ply technology and bias casing supported by two crown plies the Michelin Road Classic tire provides 50% more stability when cornering and 40% more straight-line stability than the previous generation. Approved on Iconic Motorcycle Models: The Michelin Road Classic tire has already received technical approval for its most iconic models including the Bonneville T100 and the Street Twin motorcycles.