The KRATON® 4X4 4S BLX Speed Monster Truck RTR marks the next evolution of the ARRMA® 4X4 4S platform — longer, wider, and tougher than the previous chassis for no-holds-barred bashing action, with a Spektrum™ 4S brushless power system factory-installed.
16% Larger footprint – longer and wider than the previous KRATON® 4X4 4S platform for added stability
Tough new suspension arms that increase vehicle width
Durable steel 1.35 module main diff gears and input gears in the front and rear gearboxes
Strong CVD telescopic driveshafts front and rear
Higher shock towers, longer shocks and wider suspension arms for longer, more plush suspension travel