R/C Tech Forums - View Single Post - OS R21 .21 1/8 On-road Motor

10-09-2018, 02:23 PM

#20

fergraz

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Quote:

Originally Posted by VS_Rody

The EURO spec looks interesting on paper. New sleeve(design) and piston(lighter), this in combination with the R2102 crankshaft should be a good engine for larger tracks where more topspeed is needed.

Thanks! The R21 EURO SPEC is 5 ports or 7?

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