The 4900 SA is available in two BBCs to accommodate different twin steer mixer applications. Both BBCs are standard with a high-visibility hood.

Specifications
BBC	109", 123"
Axle Position, 109"	1st front axle: 50" 2nd front axle: 122"
Axle Position, 123"	1st front axle: 50" 2nd front axle: 122"
Engine	3 manufacturers, 210-600 HP
Transmissions	Full range of manual, automated, and automatics
Front Axle Range	Up to 40,000 lbs.
Rear Axle Range	Up to 58,000 lbs.