Pontoons
MB Sports B52 25 Alpha Boats for Sale
The MB Sports B52 25 Alpha is the flagship of the MB lineup and the largest model built on the Alpha hull platform. Measuring 25 feet in length, this boat delivers MB’s biggest and most powerful surf wave while maintaining the brand’s signature craftsmanship and simplicity. Designed for large crews who want maximum space and top-level surf performance, the B52 25 Alpha combines modern technology, strong Indmar Raptor power, and hand-built quality for a premium experience both on and off the water.
The MB Sports B52 25 Alpha represents the peak of MB’s modern design and surf technology. Introduced as the largest member of the Alpha series, this model was developed to meet the growing demand for bigger boats with higher capacity and improved surf performance. Built in Merced, California, the B52 25 Alpha carries forward MB’s reputation for solid construction and reliable performance while incorporating the latest technology from the Alpha platform.
At 25 feet long, the B52 25 Alpha offers one of the most spacious interiors MB has ever built. It features deep seating throughout, a large bow, and wide transom seating with easy walk-through access. The increased freeboard provides a comfortable and dry ride, even when fully weighted. This size also allows MB to include more ballast than any other model in the lineup, creating exceptionally large surf waves that rival any boat in its class.
The Alpha hull was engineered for surf-first performance, giving the 25 Alpha the ability to produce long, powerful waves with excellent push and shape. MB’s fast-fill ballast system is standard, using gated valves to flood and drain the tanks in minutes without pumps. This setup is paired with MB’s Surf System, allowing riders to switch surf sides instantly and fine-tune the wave profile directly from the touchscreen helm. Together, these systems make it easy to achieve professional-level surf waves with simple, reliable operation.
Powering the B52 25 Alpha are Indmar Raptor series engines, typically the Raptor 440 or Raptor 460. Both deliver the torque needed to move the larger 25-foot hull and full ballast loads with ease. MB’s proven drivetrain setup ensures smooth power delivery, efficient operation, and long-term reliability under heavy use.
Inside, the B52 25 Alpha features one of the most refined interiors MB has ever offered. The deep, luxurious seating is designed for comfort and functionality, with premium upholstery, ample storage, and a layout that keeps passengers secure even in rough water. The helm integrates MB’s touchscreen command center, allowing full control of ballast, surf systems, lighting, and onboard diagnostics. The attention to detail throughout the 25 Alpha reflects MB’s continued commitment to craftsmanship and hand-built quality.
As the largest and most capable model in the Alpha family, the B52 25 Alpha is designed for serious surf riders, large families, and anyone who values space and wave performance above all else. It combines MB’s proven design philosophy with the latest technology to deliver one of the best all-around surf experiences available in a 25-foot inboard.