Standard bore, standard bore high-compression, and big bore cylinder kits from Cylinder Works� set a high bar for competitors when it comes to increasing the displacement of your motorcycle, UTV, or ATV. These cylinder kits offer better performance and engine noise reduction compared to the original equipment of your vehicle while requiring no modifications for installation. Cylinder kits from Cylinder Works come ready to install with all of the necessary gaskets, cylinders, pistons, rings, pins, and clips for a dependable replacement of your vehicle's top end.