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New O.S.SPEED B2104 1DA00 View larger

O.S.SPEED B2104 1DA00



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336,08 €

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It is a long-stroke engine, bore x stroke is 16.27 x 16.80mm. It has quicker response in low range and more torque in middle range with consistent idling.


  • A new internal shaped crankcase for better power
  • A new rear-cover with thrust plate reduces friction against the connecting rod to extend its life.
  • The new DLC coated crankshaft has two tungsten counter weights for smooth rotation and the best balance
  • A newly designed 3-port cylinder& piston set
  • The inner head with an silicon O ring for reducing vibration and preventing dust
  • Long stroke 16.8mm engine
  • Ceramic Main-Bearing

Displacement: 3.46cc 
Output: 2.68ps @ 34,000 rpm 
Bore: 16.27mm 
Stroke: 16.80mm 
Practical RPM Range: 4,000 ~ 42,000 rpm 
Weight: 352g 


  • T-P3 plug
  • 6mm & 6.5mm Venturi's
  • Exhaust Gasket
  • Dust Cap Set (3mm/16mm/18mm)


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