Superjetjim
X-
When clearancing for 10-12 mm cranks it will go thru the bottom of the case.The bottom of the case is filled then machined flat for the plate then the plate is bolted and sealed to the case.It is basicly a case extension 4stroker crank's.
Yeah - ATP do a really nice one of those as well - stiffens up the crank cases when you go over 5mm stroker. Very nice peice of kit