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O.S. MAX R21 1B900


O.S. MAX R21

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233,27 €

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The O.S. MAX R21 club-level nitro on-road engine.
The power plant targets club level drivers and it features compatibility of sparepart of the R2101/R2102 and R2103.

Tech specifications:

  • Displacement: 3.49 cc
  • Bore: 16.08mm
  • Stroke: 17.20mm
  • 5-port/3 M.E.S.
  • Practical RPM range: 4,000 – 44,000 rpm
  • Weight: 340Gr


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