The Nimbus 2 tire features an updated tread and compound that rolls even faster and has more grip than ever before. It comes in many widths to accommodate different bikes, riding styles, and comfort levels, so it\'s the perfect choice for riding on on the road or bike path.Casing: 30 TPI,Bead: Wire,Compound: 60a,Flat Protection: Flak Jacket,24 x 1.5\", psi 35-65,26 x 1.5\", psi 35-65,650b x 2.3\", psi 25-50,700 x 32mm, psi 75-100,700 x 35mm, psi 50-80,700 x 38mm, psi 50-80,700 x 45mm, psi 35-65.