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OS SPEED R21 GT Tuned Rody View larger

OS SPEED R21GT Tuned Rody


OS SPEED R21 GT tuned Rody

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395,00 €

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OS SPEED R21 GT is an all-new 5-port engine tuned by Rody

Reliability and technology of this engine are recognized worldwide, together with some addional 'Rody' touch and development.

It features a newly developed piston and 5-port cylinder, crankshaft, crankcase, Specially made to fit on-road GT track. 

The OS SPEED R21 GT has a 7mm carburetor restrictor.

Tech specifications:

  • Displacement: 3.49 cc
  • Bore: 16.08mm
  • Stroke: 17.20mm
  • Intake ports: 5-port
  • Exhaust port: 3-port
  • Practical RPM range: 4,000 – 42,000 rpm
  • Max. power output: 2.65 ps / 2.61 hp / 34,000 rpm
  • Weight: 369Gr.


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