The R-Series Traction and Support System™ undercarriage achieves power, traction and stability by transferring the weight of the machine efficiently to the ground through as many as 42 wheeled contact points. Contact points are spread evenly over the entire ground contact area of the rubber tracks. Through multi-point suspension via rubber torsion axles, the R-Series machines have a silky smooth ride.

The RTSS™ uses an internal positive drive system designed for efficient, low friction operation, even at higher speeds. The drive sprocket is elevated to help keep it away from ground debris. The drive sprocket is fitted with replaceable roller sleeves that mesh with molded rubber lugs on the inside of the track. It's designed for smooth, efficient high-speed operation and minimal wear.

For reliability and durability, the distance between the drive sprocket and the opposing wheels at each end of the track remains constant, allowing the track to remain properly tensioned while the suspension is at work. Thanks to a low weight per wheel (each wheel bear some of the weight), the track feels less stress and lasts longer. To eliminate the need for greasing, all wheel bearings on the undercarriage are sealed.

The rubber track itself is the culmination of over 20 years of research and development. It's a lightweight, pliable, yet tough material. A strong Kevlar-like wrap in the center of the rubber track prevents track stretch, so adjustments for track tension are minimal. No steel is used anywhere in the rubber track to avoid the problems of corrosion, delamination and early failure that is common on rubber tracks with steel inserts.

A special smooth green rubber track is also available on Turf Edition models. This unique smooth track offers ultimate protection of refined turf surfaces, such as on golf courses, sports fields and similar turf surfaces. These smooth tracks still offer excellent traction in most ground conditions.

The benefits of the RTSS™ include unmatched traction and stability for grading, backfilling and digging; minimal ground disturbance for work on improved surfaces; smoother travel at higher speeds for work on unleveled sites; low center of gravity for work on side hills; and long track life combined with low maintenance.