Continuous smooth center line with deep cross-hatched siping on the shoulders proiveds a stable, fast rolling tire that is equally durable The Transit Speed range comes equipped with 5mm reflective sidewall stripes to enhance visibility DYC - Dynamic Compounding, formulated for on-road applications with an emphasis on durability SEC - a combined sidewall armor and Goodyearís toughest S5:Shell, featuring a 5mm breaker EBIKE50 - has achieved a passing rating for use with E-Bikes up to 50kph and is ECE-R75 approved REF - Reflective sidewall striping or hotpatch to aid in low light visibility