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ARRMA 1/7 Big Rock 6S BLX 4x4 Monster Truck – Ready-to-Run, Crew Cab Crew Style

ARRMA 1/7 Big Rock 6S BLX 4x4 Monster Truck – Ready-to-Run, Crew Cab Crew Style

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The ARRMA Big Rock 6S BLX is a massive 1/7 scale crew-cab monster truck that delivers extreme speed, rugged durability, and authentic scale styling in a Ready-to-Run package. Built on ARRMA’s proven 6S BLX platform, this beast is engineered to tackle all terrain with black-anodized aluminum chassis, aggressive dBoots tires, and Spektrum smart electronics—offering both thrill and control from day one.

Performance

Powered by a Spektrum Firma 2050KV brushless motor paired with a Spektrum Firma 150A Smart ESC, the Big Rock races to life with lightning-fast acceleration. Its 4WD drivetrain features a steel driveshaft, all-metal differentials, and center support bracing, delivering stable power transfer on 2S, 4S, or 6S LiPo batteries. With an optional speed pinion installed, speeds exceed 65 mph, making it a high-octane monster on the trail or track.

Build Quality

Robust by design, the chassis uses 6061-T6 aluminum and reinforced composite side guards to endure hard landings and bashing abuse. Integrated skid plates, front and rear bumpers, and protective towers shield vital components, while the crew cab-style body with roll hoop and bed adds scale realism and rugged personality.

Control & Handling

Included Spektrum SLT3 2.4 GHz transmitter with SLT/DSMR compatibility and AVC (Active Vehicle Control) keeps the truck stable during high-speed maneuvers. The S665 waterproof metal-gear steering servo, dBoots RAGNAROK V2 foam tires, and wide wheel setup enhance grip, steering precision, and obstacle performance.

Ease of Use & Maintenance

Ready-to-Run right from the box, the Big Rock comes fully assembled with a Spektrum radio system installed—only a compatible LiPo battery and charger are needed to drive. Maintenance is user-friendly thanks to modular electronics and clipless body attachment, making gear swaps or repairs quick and convenient.

Special Notes

Includes a 2-year warranty for added peace of mind. While speed and size are highlights, operating in open areas is recommended due to its high-speed capability and massive proportions. Compatible with upgrades like LED light kits, making it both badass and customizable.

Specs & Features

  • Scale: 1/7
  • Motor: Spektrum Firma 2050KV brushless
  • ESC: Firma 150A Smart (waterproof)
  • Drivetrain: 4WD with steel shafts and metal differentials
  • Chassis: Black-anodized aluminum and composite
  • Suspension: Adjustable oil-filled shocks
  • Control: Spektrum SLT3 transmitter with AVC
  • Servo: Waterproof metal-gear S665
  • Tires: dBoots RAGNAROK V2 foam tires
  • Top Speed: 65+ mph with 6S LiPo
  • Ready-to-Run: Includes radio, requires LiPo and charger
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