This week I had the pleasure to meet up with Ronny and Patrick the two movers behind the Bicycle Tire brand Ultradynamico. We talk about Gravel tires, Best tire pressure for your ride, 650b, what the hell is tire casing, How a bicycle tire is made, what is the correct PSI for Gravel, Ronnys illustrious mason and so much more. These two make up what is so great about cycling subculture. A true brand of passion for cyclists by cyclist. I hope you enjoy!