Panaracer gravel king mountain bike tyrethe incredibly versatile gravel king tyre is available in a variety of widths to suit your bike'. '.strtoupper('p')anaracer created it for tackling gravel trails, dirt trails or smooth tarmac, meaning it's the perfect choice for cyclers looking to expand their horizons'. '.strtoupper('m')ade from a natural rubber material it includes a puncture protection breaker and a low rolling resistance, so you're prepared for whatever the trail throws at you.features tyre type clincher compound zsg natural compound bead type folding puncture protection yes, advanced extra alpha ax a anti flat casing terrain suited for gravel, dirt and tarmac use gravel bikes tubeless compatible yes maximum pressure 60 psi weight 27.5x1.5 310g 27.5x1.75 335gtechnologies zsg zero slip grip natural compound this compound has the same low rolling resistance as the ultima compound'. '.strtoupper('i')ts enhanced wear resistance makes it perfect for a long lasting training tyre with an excellent ride advanced extra alpha ax a ax technology is an anti flat casing that uses extremely narrow cord which is weaved at a super high density into the casing for lightness and flexibility'. '.strtoupper('t')his increased density improves resistance to cuts and abrasionsbuy panaracer wheels tyres from chain reaction cycles, the world's largest online bike store.