YIKONG YK4107 PRO 1/10 2.4G 4WD Brushless RC Rock Crawler with Tank Turn and LED Lights

The YIKONG YK4107 PRO 1/10 2.4G 4WD Brushless RC Rock Crawler offers a robust design for off-road climbing, featuring a low center of gravity (LCG) chassis and tank turn capability. Equipped with a Hobbywing brushless system, metal gears, and LED lights, this RC rock crawler suits enthusiasts navigating rocky trails or steep inclines. Its two-speed transmission and differential locks enhance versatility across challenging terrains.

Performance

The YK4107 PRO uses a Hobbywing brushless motor and ESC, providing strong torque for climbing rocks and uneven surfaces. The two-speed transmission allows switching between high and low gears, supporting both slow crawls and faster movement. The 4WD system with remote-controlled differential locks ensures traction, though loose gravel may challenge grip compared to larger crawlers. Oil-filled shocks absorb impacts, but performance depends on proper weight tuning for steep inclines.

Build Quality

The LCG chassis enhances stability, paired with metal portal axles and gears for durability. The 1.2mm PC body includes a detailed interior and clear windows, though it may scratch during heavy crashes. Molded wheel fenders and a metal frame resist impacts, but optional counterweights are needed for optimal balance, adding cost. The oil-filled shocks and full ball bearings ensure smooth operation, though small components require careful maintenance.

Control

The 2.4GHz 10-channel transmitter provides a 350–400m range with adjustable drag brake and driving modes (normal or competition). The tank turn function, activated via the transmitter, allows pivot-style steering, though it may feel less intuitive for beginners. The 25kg high-torque servo with buffer protection delivers precise steering, but response can lag on complex terrain without practice. Dynamic Stability Control is absent, requiring manual skill for stability.

Design and Features

The crawler’s design includes a full LED light system controlled by the transmitter, enhancing visibility for night runs. Available in water green, dark blue, or rock gray, the body features scale details like decals. The tank turn and two-speed differential locks add functionality, but the lack of included battery and charger increases setup costs. The modular design simplifies repairs, though optional parts like counterweights are not included.

Special Notes: This is a Ready-to-Run model, fully assembled with a painted body and Hobbywing electronics. Requires a 2S or 3S LiPo battery (e.g., 7.4V 6200mAh 30C) with XT60 connector and a compatible charger (not included). Suitable for beginners with adjustable controls, while advanced users can add counterweights for enhanced crawling.

Specs & Features

• Scale: 1/10, non-replica off-road pickup design.
• Motor: Hobbywing brushless motor for high torque.
• Drive System: 4WD with two-speed differential locks and tank turn.
• Battery: Requires 2S/3S LiPo with XT60 connector (not included).
• Transmitter: 2.4GHz 10-channel X10P-350 with adjustable modes.
• Servo: 25kg high-torque metal gear with buffer protection.
• Suspension: Oil-filled metal shocks, portal axles.
• Body: 1.2mm PC with LED lights and scale interior.
• Chassis: LCG design with metal frame and gears.
• Dimensions: Approx. 521mm length, 267mm width; Wheelbase 325mm.