#556 - RTR NITRO RS4 MT KIT WITH NITRO MT-1 TRUCK BODY Pre-Assembled 1/10th scale nitro powered truck with Nitro Star 15FE engine, radio set, ball bearings, anodized chassis and long-stroke oil-filled shock absorbers. Discontinued Genuine HPI spare part for ensured quality, correct maintenance and easy repairs. See below for kit compatibility.