Makita’s 24.5 CC Blower combines a cleaner-burning 4-stroke motor with the lowest weight in its class for more efficient performance. The BHX2500CA is EPA Phase II CARB III compliant and is a step up from older 2-stroke technology. 24.5 CC Power with Improved Fuel Efficiency The BHX2500CA is powered by a 24.5 CC commercial-duty 4-stroke engine that requires no fuel mix, and has a 17.7 oz. fuel tank for longer run time and a maximum air speed of 145 mph. The low compression engine is engineered for easy starting, with an improved configuration for easier maintenance. The BHX2500CA is compact with the lowest weight (9.8 lbs.) in its class for easier control. Engineered for Commercial Duty Makita’s cleaner-burning 4-stroke BHX2500CA is engineered for commercial lawn and garden work, and is ideal for any professional seeking a best-in-class blower.