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30mm intake and 24
*Image is for reference only
That is basically the only difference
For use with aftermarket carbs like the Mikuni VM28
Trail Bikes 51mm Stroker Crank for CRF50/70 Wheels 30mm intake and 24Convert your 88cc motor into a 108cc stroked animal with the 51mm Stroker Kit from Trail Bikes. This is an affordable kit that will convert your TB 88cc Race Head kit into a powerful open class 108cc engine (much more powerful than the common Chinese 107 and 125cc engines). Also this crank was made specifically for the newer engines and thus you will not have any fitment issues like trimming the piston skirts in order to clear the crank or the piston
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