This is the new high-performance crawler manufactured by RGT, the EX86170 offers players a smoother climbing experience. The Challenger adopts a portal axle structure, two-speed transmission, DIG system, rear axle locking function, and freely switchable front and four-wheel drive modes, with a 6.6% overdrive ratio between the front and rear wheels, and a reverse gear system, focusing on climbing performance.
The "CHALLENGER" has a truck-like appearance with combined soft and hard two-section casings, which can fully reflect the powerful climbing performance effect and modification needs. It also comes factory-equipped with a winch release function, rear axle roll bar, spare tire, LED light kit, 8-channel transmitter, and other entertainment highlights.
The newly designed low center of gravity reducer uses metal gears with 45# steel reduction shafts, enhancing durability and reliability. It features a high and low-speed switching design, equipped with a rear axle DIG locking function, providing a tighter turning radius. It also has front-wheel DIG traction. The entire car utilizes metal gears, high-precision rubber bearings, and a central steel CVD. Smoother transmission performance, with no worries about violent stripping or broken axles. Metal axle housing and metal baked finishing axle housing, portal axle design.
Second-stage gears assembled in the axle housing are made of metal. Semi-axle metal CVD ball joint. Caster hub and steering support use impact-resistant nylon material. 360-degree 25KG steering servo design, hidden wire driving design. The original winch cable can stretch up to 90 cm and support up to 15 kg of pulling weight. Axle housing-mounted steering servo provides a more direct steering performance. On extremely tight rails, through the steering servo torque, it has a better ability to cross.
A roll bar has been added to the rear axle housing, providing better support to the car in high-speed operations and preventing rollovers. Players who prefer slow climbing can remove the roll bar to gain higher torque capacity and increased crawling ability. The suspension system uses a CNC aluminum alloy coil hydraulic shock absorber, double-stage spring design, red oil injection spring. The coil suspension provides more convenient damping adjustment, which can be adjusted on different terrains.
The "CHALLENGER" will be available in an RTR version for consumers, equipped with a super torque RC550 35T motor, a waterproof metal gear ESC "Hobbywing" WP-1060 for crawlers, a waterproof 25KG metal gear servo, the ESC supports 2 to 3S lipo battery mode, and an 8-channel transmitter specially designed for the Challenger. The body uses a two-section PC casing (suitable for modifications), with environmentally friendly spray paint and transparent windows, offering three color options (yellow, green, red). The body is equipped with plastic accessories such as roll cage, air grille, rearview mirror, wiper, front and rear headlight brackets. It also includes a spare tire as a standard factory part. The body opens with a flip-up lid, making battery replacement easier; the adjustable battery tray is suitable for batteries of different specifications. Standard CNC winch support and 10-bead LED front bumper light. Electroplated silver 1.9-inch simulated wheels against drops, the new tires use a high-grip rubber compound, increase the tread width and fine irregular tread lines, completely enhancing climbing performance.