Michelin® Scorcher® "31" tires are supplied as original equipment on these Harley-Davidson® motorcycles, with approved fitments for additional model years: Super Glide® Custom, Street Bob®, Wide Glide®, XL 1200 Custom, Nightster&re Michelin® Scorcher® "31" tires are supplied as original equipment on these Harley-Davidson® motorcycles, with approved fitments for additional model years: Super Glide® Custom, Street Bob®, Wide Glide®, XL 1200 Custom, Nightster&re Exceptional Comfort and Handling: The supple casing design and profile of Michelin® Scorcher® "31" tires promote rock-solid handling on winding roads. Long Mileage: Michelin carbon black-enriched rubber compounds promote excellent durability without compromising performance. Michelin ADT Amplified Density Technology - A high-density more-rigid tire casing, which helps deliver excellent feedback and handling.Tire Specifications: Load / speed index: 63H. Construction: N/A.