... China. We can supply a full range of Bias OTR Tire from 24 inches to 63 inches 24 inches: 13. ... 2400R3539 inches: 37.5-39, 40/65-39, 41.25/70-39, 45/65-3945 inches: 45/65-4549 inches: 24 ... 00R51, 3300R51, 3600R5157 inches: 37.00-57, 40.00-57, 50/80-57, 52/80-57, 46/90-57, 3700R57, 4000R5763 inches: 53/80- ... : Tubeless, TubetireQuality Certificate: ISO9001:2000, CCC, DOT, ECE off the road tire 33.25-35