Kyosho Ultima SB Dirt Master 1/10 Scale Electric 2WD Buggy Kit
Overview
Retro‑Inspired Style with Proven 2WD Off‑Road Performance
The Kyosho Ultima SB Dirt Master is a 1/10 scale electric 2WD off‑road buggy kit that blends classic buggy styling with modern performance engineering. Based on the competition‑proven Ultima platform, the Dirt Master delivers excellent traction, stability, and durability at a price point that makes it accessible to a wide range of drivers.
With its rear‑motor layout and refined suspension geometry, the Ultima SB Dirt Master is equally suited for backyard bashing, loose‑surface running, and entry‑level club racing.
About the Ultima SB Dirt Master
Chassis & Suspension
The Dirt Master is built around a resin main chassis designed to provide moderate flex for improved grip and stability on low‑traction surfaces. The rear overhang motor layout increases rear‑tire bite, helping the buggy maintain forward drive over gravel, dirt, and dusty tracks.
A double wishbone suspension system front and rear provides precise wheel control and surface tracking. Turnbuckle suspension links allow easy camber and toe adjustments, while resin oil‑filled shocks absorb bumps and jumps for consistent handling. Shock spring preload is adjustable to fine‑tune ride height and balance.
Drivetrain & Steering
Power is delivered through a rear gear differential, which provides smooth cornering and simple maintenance. The drivetrain is fully supported by full ball bearings to reduce friction and improve efficiency.
A slipper clutch is included as standard equipment, protecting the drivetrain under heavy loads and allowing adjustable slip to tune traction and acceleration. The steering system incorporates a servo saver to protect the steering servo from impact damage.
Body & Design
The Ultima SB Dirt Master features a clear polycarbonate body with a unique retro‑modern design that pays homage to classic Kyosho buggies while incorporating modern aerodynamic considerations. A rear wing is included to increase rear stability at speed, and decals are provided for custom finishing.
Key Features
- 1/10 scale electric 2WD off‑road buggy kit
- Rear‑motor layout for increased rear traction
- Resin main chassis with controlled flex characteristics
- Double wishbone suspension, front and rear
- Adjustable turnbuckle suspension links
- Resin oil‑filled shock absorbers
- Rear gear differential
- Slipper clutch included as standard
- Full ball bearing drivetrain
- Retro‑inspired clear polycarbonate body with rear wing
What’s Included
- Kyosho Ultima SB Dirt Master unassembled buggy kit
- Clear polycarbonate body
- Rear wing
- Decal sheet and window masks
- Wheels and tires
- Full ball bearing set
- Assembly hardware and basic tools
- Instruction manual
Needed to Complete
- 2‑channel radio system
- Steering servo
- Electronic speed control (ESC)
- 540‑size electric motor
- 7.2–7.4V battery pack
- Compatible battery charger
- Polycarbonate body paint
Recommended For
- Entry‑level and intermediate off‑road drivers
- Hobbyists looking for a high‑value 2WD buggy kit
- Backyard bashers and casual racers
- Builders who appreciate classic buggy aesthetics
Specifications
- Scale: 1/10
- Drive system: 2WD (rear‑wheel drive)
- Vehicle type: Off‑road buggy
- Chassis: Resin composite
- Suspension: Independent double wishbone, front and rear
- Shocks: Oil‑filled shocks
- Wheelbase: ~270mm
- Length: ~380mm
- Width: ~249mm
- Assembly level: Kit
