Winner of the 2009 Japan 1/8 scale on-road championships!
Dominate 1/8 scale on-road with the 21XZ-R! It delivers explosive performance — affordably. The 21XZ-R has aggressive timing, yet it starts easily, so you can unleash its race-winning potential right out of the box.
- Optimally balanced, tungsten-weighted, silicone-filled crankshaft for increased torque, intake efficiency and mid-range speeds.
- Newly designed 21M slide valve carburetor with four adjustable control settings:
- Needle valve (High)
- Mixture control valve (Mid-range)
- Throttle stop screw (Idle)
- Metering needle (Low)
- Cylinder liner with seven scavenger ports and three exhaust ports for increased, efficient combustion.
- Balanced, lightened piston and a stronger, more durable con rod for high speeds and exceptional performance.
- Easy tuning and legendary O.S. reliability.
Stock Number: OSMG2040
Displacement: 0.21 cu in (3.5 cc)
Bore: 0.64 in (16.3 mm)
Stroke: 0.66 in (16.8 mm)
Practical rpm: 4,000-45,000
Power Output: 2.7 hp @ 33,000 rpm
Weight: 12.3 oz (348 g)
13873 21XZ-R Parts Listing