When we started this project we had the following goals in mind: combine the performance and styling of the 23 Alpha with the comfort and safety of the 25 Alpha. It may be in a 21′ package but we believe we accomplished our goal, and more! The all NEW B52 21 Alpha features built in rear facing transom seating, raised freeboard for a safer and dryer ride, spacious bow seating and much more to maximize your fun on the water. Powered By Indmar's Raptor 400 V8 Engine. This boat’s impressive list of features takes second to it’s best in class build quality. 2000# Sub floor ballast with 80 second fill time. We’ve also optioned in the 1550# Quickbail Auxillary ballast system, couple that with MB’s patented Switch Surf System, and you have the best wakesurf boat on the lake! Wakeboarders are treated to huge, clean, rampy wakes as well. Other standard features include Fusion Audio Bluetooth 4.0 stereo with Zonal Control, 6 Exile audio in boat speakers, 12” Exile Audio Subwoofer, 2 Exile Audio Amplifiers. Add in the 4 extra Exile Tower speakers, and you’ve got yourself a party! RGB Cabin Lighting, Fresh air exhaust, power folding machined aluminum Wake tower effortlessly folds in seconds, Zero Off GPS Cruise Control, Dual screen digital instrumentation, Tilt Steering, Swiveling, flip bolster captains chair, Stainless Steel Rubrail, Stainless Steel Cleats, full cover, Tandem Axle Boatmate Trailer W/ Brakes and Swing Tongue.