Rhythm Lite TireWhen your ride varies from skate parks to city streets, and usually ends with a session at the trails, the Rhythm Lite is the obvious tire of choice. A fast rolling center section keeps things moving, while slightly larger and deeper shoulder knobs provide enhanced traction in the dirt. Casing: 30 TPI Bead: Wire Compound: 70a for 12", 16", 18," and 20" Compound: 60a for 24" Flat Protection: Flak Jacket for 12", 16", 18", and 20" 12 x 2. 0", psi 35 65,