oylavabeer
New Member
My 50cc is faster than my 66cc they have the same mods and simmilar km's 360 v 400, the exhaust is bluer on the 66cc, it does have better bottom end up tho 10
kmh after that the 50cc is better all round same fuel mix and 44t sprocket .Should I change the exhaust? I want better top end any tips ( ive played with the e clip doesnthelp too much )

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