When evaluating 2WD tractors, the most critical factor is the Engine Horsepower (HP), typically ranging from 25HP to 100HP for standard utility tasks. You must verify the Power Take-Off (PTO) speed, usually 540/760 or 540/1000 RPM, to ensure compatibility with your existing implements. Additionally, prioritize models with multi-way hydraulic valves and a three-point hitch (Category 1 or 2) to ensure versatile attachment capabilities. For durability, look for wet disc brakes and forced pressure lubrication systems in the transmission.