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O.S. SPEED R2104 .21 ON ROAD ENGINE

 

Motor O.S. Engines R2104 .21 1/8 pista nitro. 

 

 


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OS1C600
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415,00 €

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New OS Speed R2104 replacing the O.S. SPEED R2103 

 

Features: 

 

The new engine has a redesigned 9-port liner to improve torque in low-middle power range. 

 

A redesigned crankshaft counter weight enables smooth power transition from low to top. 

 

Distance between the cooling fins is enhanced for better air flow and better balance. It also features an anodized in two colors; black and red. 

 

An silicon O-ring fit to the inner head prevents dust from coming into the engine. 

 

 

 

Specifications 

 

Content: 3.49 cc  

Bore: 16.08mm  

Stroke: 17.20mm  

HP: 2.8 ps / 2.76 hp at 33000 r.p.m. 

Practical range: 4000-45000 r.p.m. 

Weight: 340g 


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