The 2021 Yamaha Wolverine RMAX4 1000 is a high-performance 4-seat UTV powered by a 999cc parallel-twin engine, producing roughly 108 horsepower. It features a 66-inch width, 13.4-inch ground clearance, and a versatile, sliding rear-seat system. Key specs include a 2,000 lb towing capacity, 600 lb bed capacity, and advanced Fox suspension.