tomsta204
New Member
are the motors the same in the crf50 and crf70 but the crf70 has a bigger bore or is it all diffrent inside the motor??
crf50 and crf70
- Thread starter tomsta204
- Start date
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the 70 has bigger/stronger gears the clutch is stronger and the head has biger valves etc etc but its just the bore that makes it 70cc thats pretty much it but it has those other stronger parts but a crf50 engine can be stronger buy just adding a HD clutch and a bore kit like im doing...and so is everyone else 
