The ground control fat tire uses similar knob shapes as the narrower versions in order to offer the best climbing braking and cornering traction for your fat bike excursions no matter the conditions you39ll be able to ride with confidence and maximize your enjoymentgt casing 120 tpi for 26quot 60 tpi for 20quot and 24quotgt bead foldable for 26quot wire for 20quot and 24quot 26 x 40quot butyl wrapped bead 2bliss readygt compound 60agt 24 x 40quot m