Crankshaft jack-up is better than crank pin jack-up because crank pin is made from 3 pieces that is being welded together.
Faito crankshaft jack-up have the same properties of crank pin jack -up but the durability is the same like the OEM parts since the installation only change the TDC and BDC for 3mm. The offset 3mm is achieved by altering the stroke dimension right at the crankshaft itself.
The benefit of having longer stroke is that we can have bigger displacement for our bike and also better torque since, long stroke is related to better torque. Anyway, this will make the bike is not high-revving engine since high-revving engine usually have short stroke.
One more picture after the jump
Click on the image to read the description (in Malay language).
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