Ultimate Racing Engine M-5S Ceramic

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