This crank is a billet one from Crankworks made for high horsepower using superior material for exacting standards. A few of the better features for a billet crank over a cast crank include better press fit, larger 30mm shafts for more rigidity, improved balancing tolerances. It also has a double o-ring labyrinth and 62mm OD main bearings. Our cranks come standard with max load TZ and are built with Hot Rods 115mm connecting rods. These are recommended for all 10mm motor builds.