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O.S. SPEED T1204 1CS00


O.S. SPEED T1204

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340,37 €

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Featuring improved torque at medium to low speeds, the throttle response has also been improved.

This has been achieved through a newly designed crankshaft with different counter weight shape which has had two tungsten weights installed for improve performance.

The cooling head has also been changed to improve cooling, while the button and its o-ring has been modified to prevent dust entering this area.


  • New inner crankshaft.
  • New Cooling-head increased cooling.
  • New combustion chamber/o-ring.


Type :Touring
Contents :.12(2.11cc)
Bore :13.67mm
Stroke :14.30mm
Crankshaft :DLC/TUNG/SIL 12mm SG/SPT
Main Bearing :12mm Ceramic
Front Bearingt :7mm HighSpeed 
Cylinder type :ABC
Ports :3
Exhaust :1
Carburator :12F5(B) with 5.5mm venturi
Cooling-Head :48mm/6 ribs
Underhead :for glowplugs Conical/Turbo
RMP :Max Power @ 33K RPM (5-45K RPM range)
Weight :215Gr


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