OS Speed R21 Euro Spec.

2825
€499.99 *

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The OS Speed R21 Euro Spec. was developed for high-speed tracks that require a higher final... more
The OS Speed R21 Euro Spec. was developed for high-speed tracks that require a higher final speed.
The piston and liner are redesigned,
two holes in the piston help to reduce weight. The engine finishes off the evolution of it's reliable OS SPEED R2103.

  • For high-speed tracks
  • The piston is redesigned
  • Lesser waight
  • Revised and newly developed Liner

The Set contains:
  • 8,0 mm and 9,0 mm carb reducers
  • 21M2(B) carburetor
  • Speed Gold P7 Turbo glow plug

Related links to "OS Speed R21 Euro Spec."
Technical information
Item Number Manufacturer: 1C400
Bore [mm]: 16,08
rpm range, approx.: 4000 - 45000
All-up weight [g]: 340
Stroke [mm]: 17,2
Cylinder capacity [ccm]: 3,49
Output [kW / PS] at [rpm]: 2,8 (PS) / 33000
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