Introduction EB-4 S2 Pro.Edition from Thunder Tiger Item No.6227F072 All assembly has been completed for you. Simply install your batteries in both transmitter/receiver and get ready to rip. You will be happy to know that your S2 comes with a race legal 150cc fuel tank with a flip-top design to make refueling fast. What this means is more time driving less time in the pits. While driving the S2 you notice the easy handling characteristics due to the high torque steering servos supplied with each an every S2. The S2 heritage started from the National Champion EB-4, now with this addition of high performance engine, tuned muffler, and servos you will enjoy the S2 at a whole new level. Body has been pre-painted so you can enjoy your new EB-4 right out of the box. EB-4 S2 provides true Ready-To-Run performance! Features 1.100% Assembled 2.ACE RC 3-CH 2.4GHz Cougar PS3 included 3.High Torque Steering Servo 4.Printed Body with Decals 5.Race-Proven Suspension Geometry 6.Durable Gear Differential System 7.Thunder Tiger PRO-21 BX-R Engine with Pull Start 8.Double High-Density Annular Foams Air Filter 9.Strong Fiberglass Reinforced Composite Parts 10.Sturdy Alum. Chassis 11.Ergal Front Shock Tower 12.Ergal Rear Shock Tower 13.Ergal Steering Slider 14.Ergal Center Diff Top Plate 15.High Performance Rubber Tyre 16.Adjustable Alum. Large Volume, Competition Shocks 17.Front Ball Type Universal Drive Shaft 18.Vented Flywheel 19.Performance Tuned Pipe and Manifold 20.Adjustable Toe-In/Camber/Caster Angle Specification Wheelbase(mm / in.) 12.4"-12.6"(315mm~320mm) Weight(g/ lbs.) 109.35 oz(3100g) Length(mm / in.) Width(mm / in.) 11.8"(300mm) Height(mm / in.) Ground Clearance(mm / in.) Drive train/Pulley ratio Motor Enigine PRO-21BX-R