otr tyre 40.00-57 E4, 1800-25, 1800-33, 2400-35, 2700-49, 3300-51, 3700-57 and so on. otr tyre 40.00-57 E4, 1800-25, 1800-33, 2400-35, 2700-49, 3300-51, 3700-57, designed for use by articulated dump trucks. The rock flush pattern and shoulder protector provide excellent cut resistance. The deeper tread pattern is designed for stronger endurance. Effective heat dissipation and strong deformation ...