For those of you who are like myself that will not run Forged Pistons in a two cycle engine here is the only Fix Kit that I have heard of with Cast Pistons. The Pistons look like they are of good quality. They are coated and look strong structurally. There are lubrication holes drilled in the pistons on the intake and exhaust side of the piston. It uses RIK piston rings, which is one of the largest ring manufacturers in the world. They are a very good quality ring. The piston also comes with the piston pin bearing (bonus). The kit comes with a cylinder spacer and two base gaskets. The longer flanged head cylinder bolts are a 10.9 strength which is equivalent to a grade 8 SAE bolt. I will post info when I install the kit to see how well it fits with piston to cylinder clearances later. I have recently had shoulder surgery so it may be a little bit, but it will happen. By initial appearance, my impression is good with the quality of how this kit looks.