.top{margin-bottom:30px;}.top li{margin-left:5%;margin-right:5%;margin-top:10px;line-height:120%;list-style-position:outside;} The Ground Control GRID 2Bliss Ready tire is an exceptionally versatile trail tire. CAD engineered knob shapes strengthen the knob structure for optimal braking and traction, but knob surfaces remain adaptable for the best possible ground control. Meanwhile, our proprietary GRIPTON® compound helps make this the perfect choice for epic trail rides in any condition. Please note that we recommend GRID tires for anyone seeking increased flat and sidewall protection, or additional stability. 26 x 2.3", psi 25-50, approximate weight 660g 27.5 x 2.3", psi 25-50, approximate weight 740g 27.5 x 2.6", psi 20-40, approximate weight 915g 27.5 x 3.0", Max Ride 25 psi / Max Install 35 psi, approximate weight 1000g 29 x 2.1", psi 25-50, approximate weight 710g 29 x 2.3", psi 25-50, approximate weight 810g 29x2.6, psi 20-40, approximate weight 890g Bead: Foldable Butyl wrapped bead = 2Bliss Ready Casing: 60 TPI Compound: GRIPTON® Color BLACK