The BOMAG BW 161 AC-5 is an articulated combination roller featuring a front smooth vibrating steel drum and four smooth pneumatic rubber tires at the rear. The front steel drum delivers primary compaction density, while the rear rubber tires exert a kneading action that seals the surface, prevents hairline cracking, and ensures a smooth, water-impermeable finish—especially on mixes sensitive to scuffing. Powered by an efficient engine with BOMAG ECOMODE, it offers maximum fuel economy, outstanding operator visibility, and a maintenance-free articulated joint.