The Yikong YK4107 is a feature-packed 1:10 scale 4WD crawler built around Yikong's latest low centre of gravity chassis. Designed for technical crawling and trail driving, the YK4107 combines remote locking differentials, a two-speed gearbox, portal axles and an innovative DIG-controlled tank turn system, giving the driver considerably more control when tackling tight or difficult terrain. This is the brushed YK4107AG-BR version finished in Aqua Green.
Power comes from a 550-size brushed motor backed up by a 60A brushed electronic speed controller, with support for both 2S and 3S LiPo batteries. The two-speed transmission can be shifted remotely between high and low range, allowing the YK4107 to switch between controlled low-speed crawling and faster trail driving without stopping the vehicle. Full-metal transmission gears, ball bearings and front and rear portal axles complete a drivetrain designed around dependable off-road performance.
One of the standout features of the YK4107 is its remote-operated tank turn system. Using the DIG function, the truck can alter the rear drivetrain operation to dramatically tighten its turning circle, making it particularly useful when manoeuvring around rocks, gates and other confined sections of a crawler course. Front and rear differential locks are also operated from the transmitter, giving the driver the option of maximum traction when required rather than relying on permanently locked axles.
Steering is handled by a powerful 25KG metal gear servo fitted with Yikong's revised servo buffer protection system. Full-metal oil-filled shock absorbers provide controlled suspension movement, while large 116mm crawler tyres and 65mm of ground clearance help the chassis negotiate uneven terrain. The portal axle layout also raises the drivetrain components away from rocks and obstacles without requiring excessively large tyres.
The YK4107 is controlled through a 2.4GHz 10-channel Dumbo RC radio system, providing access to its multiple driving functions including high and low transmission ratios, front and rear differential control, tank turn and selectable driving modes. A remotely controlled lighting system adds to the scale appearance, while the 1.2mm polycarbonate body includes transparent windows and a detailed simulated interior rather than relying on dark window decals.
Please note: You will need to supply four AA batteries for the remote controller.