MARIETTA, Ga., June 18, 2025 (GLOBE NEWSWIRE) -- Yamaha Motor Corporation, USA, is proud to announce an extensive update to its industry-leading flagship Motocross model, the new 2026 YZ450F. Faced with the complex challenge of improving on a bike already widely considered the benchmark of the ultra-competitive 450cc four-stroke class, Yamaha engineers put significant focus into refining power delivery and handling performance to achieve a level of precision, control and tuneability that sets a new class standard: the easiest bike to ride fast.