O.S. SPEED ENGINES

1:8 GT CLASS


O.S. SPEED R21GT II W/T-2060SC Comboset

OS1DT01 - NEW!

 

The high-performance GT engine has evolved into the next generation!

While inheriting the smooth feeling and good fuel efficiency of the previous model O.S.SPEED R21GT, which was well received in the European market, the home of GT cars, the power feeling in the medium and low speed ranges has been improved by revising the counterbalance of the crankshaft. In addition, the newly designed inner head improves idling performance, and an inner head O-ring is used to reduce vibration and improve dust resistance. The outer head has been made lighter, and has evolved into the O.S.SPEED R21GT II with attention to the detail.

O.S.SPEED R21GT II Combo Set (OS1DT01)

TB01 EFRA2042 &MB01-70

Spec:

  • Displacement: 3.49 cc
  • Bore: 16.08mm
  • Stroke: 17.20mm
  • Output:2.65 ps/34,000 r.p.m.
  • Practical rpm range: 4,000-42,000 r.p.m.
  • Weight:362g

 

469,00 €

  • disponibile
  • consegna in 3-5 giorni 1

O.S. SPEED R21GT II

OS1DT00 - NEW!

389,00 €

  • disponibile
  • consegna in 3-5 giorni 1


O.S. SPEED R21 GT + T-2060SC + MB01-70(M2003SC)COMPLETE SET

1CC01

 

OS SPEED R21 GT is an all-new 5-port engine.
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.

449,00 €

  • disponibile
  • consegna in 3-5 giorni 1