This flexible chassis has been significantly modified from the jig-built flexible chassis. The specifications are as follows: Bridging Construction "The front and rear units are connected with split, aftermarket direct carbon, increasing the strength of the center chassis and preventing cracks." Underside Raised with Liner "When using 23mm tires, the bottom of the chassis hits the ground upon landing, so raising the chassis bottom is essential. A liner is installed to raise the bottom by about 1mm, and it has been polished." Battery Coverless "The battery is held in place with a rubber liner for weight reduction." Damping Rubber "It provides solid damping to keep jumps low and landings smooth. The black spring has been pre-cut by one coil, which is essential for three-dimensional courses." Aftermarket Carbon Stays "The chassis shaft has been cut, and aluminum shafts with black countersunk screws are used. Carbon provides stable prevention of drooping." Axle Hole Reaming Completed "There are individual differences in axle holes, and some holes do not allow a 620 bearing to fit, so they have been expanded with a 6mm reamer." Spur Gear Clearance Processing "The gear covers have been shaved to prevent the spur gear from contacting the front and rear gear covers." Front and Rear Bumpers Raised 1.5mm with Reinforcement "Raising the bottom is essential for bank through when attaching brake stays. Also, because the base becomes weaker by raising it, carbon reinforcement is applied from the inside, and both front and rear are reinforced with black instant glue." Bumper Cut "The post-processing after cutting the bumper has not been touched. It is recommended that you adjust it when installing AT or anchor systems." Normal Terminal Voltage Adjusted "If the normal terminals are well-polished, they will have good electrical conductivity and can be used longer than gold terminals, which get scratched. Each voltage has also been increased with brakes." Normal Gear Cover Screw Fastening "The normal gear covers often come loose, so they are fastened with screws. Also, the motor is supported, and the voltage does not escape. This is also essential." Counter Gear POM Support "The counter gear is supported by POM with a low-friction plastic bearing set, so low friction and increased torque can be expected. 520 bearing installation is recommended." The chassis is designed to be durable and stable. It is a chassis that bottoms out quite a bit, so gear clearance processing must be done without going through. The voltage increase also changes the speed by 1000 RPM, so the voltage increase is considered, the motor is firmly fixed, and the chassis has a solid suspension and good damping. The switch protrudes, so please cut it to your liking. Thank you very much.