Bontrager GR1 Team Issue Gravel Tyre 700X35C TLR SWThe GR1 Team Issue gravel tire is designed to be smooth and have smooth traction on less paved roads. It has proven to be reliable on the toughest gravel rides and thanks to the lightweight puncture protection Inner Strength Casing keeps it smooth, soft and fast. In addition, you can choose to set aside the inner tubes for increased performance and further protection from punctures. HOW TO USE A gravel tire that excels on smooth and fast surfaces High