O.S. Speed R2103 1/8 On-Road Engine

$799.99 $629.99


  • Displacement: 0.213 cu in (3.49 cc)
  • RPM Range: 4,000-45,000
  • Output: 2.76 hp @ 33,000 rpm
  • Weight: 11.99 oz (340 g)

    Product description

    The next generation of on-road performance has arrived with the Speed R2103 from O.S.! Capable of a wider range of torque than the R2102, the Speed R2103 dominates even on high-grip surfaces. Superior fuel consumption ensures you get the most mileage from every fill-up. Factory-applied two-color graphics add signature style to this sleek-looking power plant.

    • Compatible with 16% nitro fuel, which complies with EFRA regulations.
    • Crankshaft with Diamond-Like Coating (DLC) and an embedded tungsten weight.
    • Outer head with factory-applied two-color graphics.
    • Inner button head allows for finer tuning to meet track conditions.
    • Steel rear ball bearing.
    • Slide valve carburetor.
    • 8.5 mm reducer installed in the carburetor venturi to reduce the amount of airflow for greater torque.
    • Turbo RP7 glow plug.
    • Includes exhaust seal ring, tapered collet and three carb dust seal caps.