RocknRoller R14G "Mega Ground Glider" is the industrial strength, heavy-duty workhorse you need. Featuring thicker tubing, and capable of holding up to 700lbs, the R14G can expand to a massive 60" length, with a 15" wide frame bed that increases load stability with stacked cargo. In fact, the R14G can carry 20% more cubic ft worth of gear than an R8 or R10. Rugged, foam-filled no-flat 8" x 3" rear wheels and 6" x 3" front casters come standard.