We took the tread design of the Fast Trak 2 Bliss Ready tire a step further by manipulating each knob with FE Analysis. We enhanced an already proven tread by having more consistent shoulder blocks for better cornering traction & block spacing is configured for better self-cleaning. GRIPTON compound gives a livelier feel & grip is enhanced in wet or dry conditions.> Casing: 60 TPI> Bead: Foldable> Butyl wrapped bead = 2 Bliss Ready> Compound: GRIPTON> 29 x 2.1 psi: 25-50 approximate weight 625g