Tire - StarCross 6 Medium Soft - Rear - 100/90-19 - 57M Michelin® Silica Technology™ provides up to 19% more traction d to previous generation when worn (2); and helps maintain tread block integrity over the life of the tire, Michelin® Silica Technology™ provides up to 11% more durability d to previous generation (3), The adaptive design provides up to 16% more traction when d to previous generation (1), (1) Based on internal testing conducted in 2021 in Vertaizon, France on intermediate track using a '20 Yamaha 450 YZF fitted with a new 110/90-19 Michelin® StarCross® 6 Medium Hard d with a new Michelin® StarCross® 5 Medium rear tire. Actual results may vary., (2) Based on internal testing conducted in 2021 in Jonquieres, France on hard track using a '19 KTM 450 EXC fitted with a worn 110/90-19 Michelin® StarCross® 6 Medium Soft d with a worn Michelin® StarCross® 5 Soft rear tire. Actual results may vary., (3) Based on internal wear testing conducted in 2021 in Jonquieres, France on hard track using a '19 KTM 450 EXC fitted with a worn 110/90-19 Michelin® StarCross® 6 Medium Soft d with a worn Michelin® StarCross® 5 Soft rear tire. Actual results may vary.