UR3401-M5S

ULTIMATE ENGINE M5S CERAMIC

Product info:

This is the Ultimate M5S based on the OS B2103 Type R engine. This 5-port long-stroke engine offers great power at medium-high speeds. The cooling head, the crankcase cover plate and the carburetor feature a new design. The new DLC-coated crankshaft has two tungsten counterweights for smooth rotation and better balancing. It comes with ceramic rear bearing, the 22E carburetor and an O-ring under the cooling head for reducing vibration and preventing dust from entering the engine.

This engine has been developed for medium to high speed tracks.

 

Features:

  • The long-stroke off-road engine put a high value on beasty power in mid-high speed range.
  • The cooling head, carburetor, crankcase cover plate are designed new.
  • The new DLC-coated crankshaft has two tungsten counterweights for smooth rotation and better balancing.
  • Ceramic rear bearing.
  • O-ring under the cooling head for reducing vibration and preventing dust from entering the engine.
  • A newly designed 22E carburetor for producing high power

 

Technical specifications:

 

  • displacement 3.49cc
  • bore 16.27mm
  • stroke 16.80mm
  • rpm 4000-42000 rpm
  • max output 2.64hp/34000 rpm
  • weight 352gr
  • recommended exhaust: UR352141 o UR352142
  • port 5-port
 
More info

This is the Ultimate M5S based on the OS B2103 Type R engine. This 5-port long-stroke engine offers great power at medium-high speeds. The cooling head, the crankcase cover plate and the carburetor feature a new design. The new DLC-coated crankshaft has two tungsten counterweights for smooth rotation and better balancing. It comes with ceramic rear bearing, the 22E carburetor and an O-ring under the cooling head for reducing vibration and preventing dust from entering the engine.

This engine has been developed for medium to high speed tracks.

 

Features:

  • The long-stroke off-road engine put a high value on beasty power in mid-high speed range.
  • The cooling head, carburetor, crankcase cover plate are designed new.
  • The new DLC-coated crankshaft has two tungsten counterweights for smooth rotation and better balancing.
  • Ceramic rear bearing.
  • O-ring under the cooling head for reducing vibration and preventing dust from entering the engine.
  • A newly designed 22E carburetor for producing high power

 

Technical specifications:

 

  • displacement 3.49cc
  • bore 16.27mm
  • stroke 16.80mm
  • rpm 4000-42000 rpm
  • max output 2.64hp/34000 rpm
  • weight 352gr
  • recommended exhaust: UR352141 o UR352142
  • port 5-port
 
Data sheet
ModelOff Road
Engine or ComboEngine
2 stroke or 4 stroke2 stroke

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