Tioga Powerblock SSpec Tire 20 x 1 1/8 Clincher Folding Black 120tpi 2017 Ships within United States Buy Online or Click & Collect Share Loading Facebook Like button... Tioga Powerblock SSpec Tire 20 x 1 1/8 Clincher Folding Black 120tpi 2017 Ships within United States Buy Online or Click & Collect Share Loading Facebook Like button...