Maxxis Maxx Daddy BMX TyreStaggered, tightly spaced center lugs provide controllable speeds. The knob spacing increases near the shoulder lugs to produce two channels that hook up on hardpack berms to loose dirt on the trails.Specifications: TPI: 60 Bead: Wire Weight: 500g (1.85")- 555g (2") Compound: Single Max PSI: 40Buy Maxxis Maxx Daddy BMX Tyre from Chain Reaction Cycles, the World's Largest Online Bike Store.