Tioga PowerBlock Tire 20 x 11/8 PSI 100 TPI 60 Clincher Wire Black BMX Bikr 2017 Ships within United States Buy Online or Click & Collect Share Loading Facebook Like button... Tioga PowerBlock Tire 20 x 11/8 PSI 100 TPI 60 Clincher Wire Black BMX Bikr 2017 Ships within United States Buy Online or Click & Collect Share Loading Facebook Like button...