"2020 New release" after many months of testing we are ready to produce and sell our  29.6 stroker crank for the S-520 RCMK bottom end installing this will give you 60cc with 29cc Heads.installing these will take  In-line to level never seen before. when seeing one run is sick its unreal.

ok this is pre-order we only have very very few that will be available.Be one of the first if not it will be 2 to 3 months before we have more ready.


Price is $329.00 you can send payment with note to This email address is being protected from spambots. You need JavaScript enabled to view it. or order through the website.

will be shipping the week of 26th oh july