This is the Radio Controlled, Electric Powered, 1/10 scale Off-Road DEX410v3 Buggy Kit from Team Durango. The differences between the DEX410Rv3 and DEX410v3 are as follows: DEX410Rv3 DEX410v3 Aluminum Shock Towers Carbon Fiber Shock Towers Composite Caster Blocks Aluminum Caster Blocks Composite Rear Brace Carbon Fiber Rear Brace Standard Shocks Big Bore Shocks Composite Suspension Mounts Carbon Fiber Suspension Mounts FEATURES: Chassis: Aluminum 0.08" (2mm) thick Drive: Four wheel shaft drive Shocks: Aluminum body, big bore oil-filled with titanium nitride shafts for smooth action and increased durability and longevity Shock Towers: Carbon fiber 0.16" (4mm) thick Body: Clear polycarbonate with rear wing and decals Transmission: Single speed with quick release slipper clutch Spur Gear: Composite construction 48 pitch 87 tooth, quick release design Differentials: Bevel gear Wheels: Dish type, yellow in color 12mm hex 2.2" (56mm) diameter front width 1.02" (26mm) wide, rear width 1.5" (38mm) wide Suspension: Single hanger for rear suspension allows easier and faster anti-squat adjustment Caster: Adjustable, caster/toe-in refers to the angle of the front suspension when viewed from the side of the car in relation to the chassis Camber: Adjustable, camber refers to the angle of the tops of the tires from vertical when viewed from front or behind vehicle INCLUDES: Team Durango DEX410v3 Buggy Kit with Wheels, Body with Wing, Decals Diff Oil, Thread Lock and Instructions REQUIRES: Radio: 2-channel with high torque steering servo Electronic Speed Control: To match selected motor Motor: Brushless Pinion Gear: 48 pitch, number of teeth to be determined by motor choice Battery: LiPo Battery: 2S 7.4V saddle pack Battery Charger: To match selected battery Tires: 1.02" (26mm) front, 1.5" (38mm) wide rear Shock Oil: Silicone, slightly heavier weight recommended for front Building and track equipment SPECS: Vehicle- Length: 13.75" (349mm) Width: 9.8" (249mm) Wheelbase: 10.9 - 11.2" (278-285mm) adjustable Internal Gear Ratio: 2.47:1 Weight: 61.7oz (1750g) ready to race Body- Length: 10.5" (266mm) Width: 4.4" (112mm) Height: 2.5" (63mm) COMMENTS: For Replacement Ball Bearings use: Qty. Size Location Qty. Bearing Set 2 10x15mm Slipper Clutch 1 DTXC1595 2 10x15mm Fr Diff 1 DTXC1595 2 10x15mm Rear Diff 1 DTXC1595 2 5x10mm Fr Gearbox 1 DTXC1535 2 5x10mm Rear Gearbox 1 DTXC1535 2 5x10mm Fr Hubs 1 DTXC1535 2 5x13mm Fr Hubs 1 TDRC1290 2 5x10mm Rear Hubs 1 DTXC1535 2 5x13mm Rear Hubs 1 TDRC1290 4 4x7mm Steering 2 DTXC1507 jxs 04/13/12 ir/jxs