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1/10 EP 2WD KIT ULTIMA RB6(2015)

The most dominant IFMAR electric off-road racing machine charges into the new season with key running changes!

26 years after the Ultima’s first race victory, Team Kyosho International’s Jared Tebo (America) drives the Ultima RB6 to dominate the IFMAR Electric Off Road Car Championship held in California in September 2013 with TQ and championship victory. The world’s most formidable racing machine has now been modified to deliver superior performance on high-grip running surfaces. In addition to the key advantages of the previous model (No.30068) such as high-rigidity 7075-T6 duralumin main chassis, adjustable battery mounting position for changes to weight distribution, choice of midship or rear motor mounting systems, Big Bore oil shocks for excellent surface tracing, the new model features the selection of rear wing, rear suspension arms & shock springs to suit the midship motor mount setup. These changes realize improved durability and broader setting options for stability on high grip surfaces including artificial grass, carpet and hard-packed dirt. The new RB6 is fully loaded and designed for racers ready to challenge serious competition or upgrade for the next big racing event.

Designed with the latest race-winning specifications including high-rigidity duralumin main chassis, large capacity big bore shocks for excellent surface tracing, and choice of two motor layouts.

Straight, separate or short battery types can be installed. Also, short battery type allows mounting position and weight distribution to be selected to suit different surfaces and layouts.

Motor mount setup can be either midship mount for superior performance on high grip surfaces like artificial grass, or rear mount that maintains solid grip on low mu surfaces with no sand or gravel.

7075-T6 duralumin + hard anodized main chassis realize high-rigidity. Side plates that produce pitching rigidity also contribute to improved durability.

RB6’s unique forward cabin type body delivers sharp cornering and stability. Improved cornering and durability is achieved by replacing the rear wing combination with the Step Wing 3.0 (LA373).

Increased mounting holes for rear suspension arm (UM713B) provides wider setting options for the midship motor configuration. Change the shock springs to medium (XGS013) to achieve more rear grip.

Crash resistance improved with installation of one-piece steel drive hub, hard type ballends and chromoly adjustable tie rods. Also, caster angle can be changed by replacing bushes on front hub carrier.

Steering crank system produces excellent off-road turning performance from optimal akerman ratio setting in addition to linear control feel.


  • Based on the 2012 Ultima RB6 (No.30068), this model has been specifically modified for midship motor mount configuration.
  • Design allows both midship and rear mounting of the motor.
  • Features tungsten diff balls.
  • Uses one-piece steel front wheel shafts.
  • Battery mounting position can be transferred between front and rear when using separate or short type Li-Po batteries.
  • Transmission incorporates reinforced idler gear to increase strength and performance.
  • Clamp screw aluminum hex wheel hubs provide secure traction and precise rotation on the rear.
  • New larger capacity slipper clutch is compatible with high power motors.
  • Gun metallic anodized aluminum parts produce a formidable finish.
  • Includes X-GEAR ball diff grease and high graphite grease.

＜ Required for Operation ＞

  • 2-channel, 1-servo, 1-ESC R/C System
  • Motor
  • Battery for chassis
  • Tires
  • Tire inners
  • Battery charger
  • Pinion gears
  • Paint for body
  • Batteries for transmitter
  • Tools
Chassis Technical Data
Length
395mm
Width
249mm
Height
140mm
Wheelbase
285mm
Tread (F/R)
221mm/201mm
Tire(F/R)
sold separately
Gear Ratio
spur 76T/pinion gear sold separately
Weight
1,620g (approx.)
Motor
sold separately