For Every RideThe Grand Prix TR is the perfect tire for that chilled Sunday ride with friends, sprinting for town signs, and enjoying the road ahead. Each tire is built using our iconic BlackChili compound and features an all-new 4-ply construction. It's a serious tire for those that prioritise enjoyment over pure performance. Whether training, commuting or going the distance – The Grand Prix TR has you covered.All Tubeless Ready tires have been designed with versatility in mind. It’s your choice: set up tubeless using Sealant or use an innertube.For initial mounting we recommend to use at least 30 ml of Conti RevoSealant per tire. Then spin the tire (wheel) to spread the Conti RevoSealant insideof the tire and pump to the allowed maximum pressure. Check the pressure before the next ride and adjust to your desired PSI. This tire is Hookless compatible to its limited max. pressure. Please check wheel instruction and tire packaging for detailed information.