The brand new X1+ is the fastest GK ever and yet hits all the important points for gravel riding and racing today; aggressive, fast rolling tread, superior cleaning in wet/muddy conditions, and greater control in rougher terrain. This all new tread design is homage to the 10th anniversary of Gravel King and to the many riders around the world who have had countless adventures and experiences with Panaracer. The all new ZSG Gravel compound delivers consistent performance in all conditions. New advancements in rim technology has led to the innovative BeadLock TLR bead, allowing for easy fitting and confidence in your tires staying locked on. This is all wrapped up in a new incredibly tough 120tpi TuffTex+ casing with bead to bead protection & double strength casing ensuring solid, confidence inspiring performance of the newest member of the GravelKing family. In the decade since we introduced GRAVELKING, the gravel market has evolved significantly. The All new GravelKing is equipped with cutting-edge technologies exclusively developed by our company: ZSG Gravel Compound, TuffTex / TuffTex+, and BeadLock. This next-generation tire aims to surpass its predecessor by delivering unparalleled performance, boasting low rolling resistance, puncture resistance, and a supremely smooth riding experience. Ideal for gravel, dirt, and rough pavement TuffTex+ increases tire resilience with a dual layer of bead-to-bead TuffTex material, providing additional puncture resistance and heightened security in the most challenging conditions BeadLock is engineered to accommodate a broader range of rims, including both hookless and clincher types. In most instances, mounting the tire can be effortlessly achieved with a standard floor pump ZSG GRAVEL Compound is crafted from a proprietary ZSG (Zero Slip Grip) material to ensure remarkable resistance to temperature and weather fluctuations. This consistent rubber performance across a spectrum of temperatures provides lower rolling Resistance and improved grip Folding (Aramid) Bead Tubeless and Hookless Compatible Tubeless Ready up to 60 PSI Item Specifications Color: Black/Brown Defined Color: Brown Flat Protection: Tread and Sidewall ISO Diameter: 622 / Road / 29" ISO Width (mm): 35c, 40c, 45c PSI: 60 / 80 Tire Bead: Folding Tire Diameter: 700c Tire Intended Use: Gravel Tire Type: Tubeless Ready Clincher.