Ok just got off the phone with rocket factory for the stroker crank with all my mods all I need is to buy the crank $999.00, I can use a my stuff even my piston but would have to send them the piston so they can shave a hair off it. They say it a better crank then the stock so depenabillity will be go. Its a 4mm bigger strok. Now do you think it worth it. This will make my bike a 770.