Lighter, leaner and meaner. The F1ULTRA R5 is a cutting edge high-performance F1 racing kit that evolves all of the great features of original F1Ultra into a perfected race machine.Required to Complete:1:10 Scale Electric MotorSMALL SIZED Electronic Speed Controls (TEKIN RS SPEC ESC fits and works very well)LOW PROFILE TC type steering Servo (no off-road servos)"Shorty" Battery Pack or LCG Shorty PackBattery Charger2-Channel Surface Radio System1:10 Scale F1 Wheels and Rubber (or Foam) Tires1:10 Scale Polycarbonate F1 BodyPolycarbonate-Specific Spray Paint for BodyServo Tape (3M brand is best)Kit building toolsFeatures:Extra narrow 72mm chassis for less chassis scrub through corners.Adjustable forward and back servo positioning for easy ackerman/steering geometry adjustments.Patented floating pod rear suspension system for superior rubber tire traction.NO center rear pod ball pivot means much improved chassis roll for unmatched corner speeds.Adjustable camber and caster via turnbuckles for easy and exact set up with no clumsy inserts.Innovative double spring top shock uses an additional internal spring to provide increased forward bite.3 oil filled shocks with all machined bodies and internals for velvety smooth operation and proper sealing.Lightweight chassis mounted rear wing mount system included, for improved rear grip.1 piece heavy duty machined alloy front bulkhead provides rock solid tweak free front suspension mounting.1 Piece 7075 alloy rear pod plate for a tweak free heavy-duty design, adds rear traction and improves motor cooling.High performance ball diff set with 1/4" carbon fiber axle and extra heavy duty oversized 1/2" axle bearings.Simplified direct steering to servo design for reduced play, reduced parts count and precise steering feel.Easy front roll center changes via shims on the inner camber mounts.Short and long wheelbase settings for large and small tracks.4 position battery tray allows positioning the battery forward or back for more front