Base hole tapped for standard 1/2-13 mounting bolts (bolts not included)

- Outer pockets: 4

Perfect for replacing worn or damaged plastic parts

Without a ball attachment only about 5 mm thin

which makes the mounting fast and easy - directly on existing brackets

CYLINDER WORKS CYLINDER STD KIT 10004-K02 derbi-gpr-50-r-50-1999-esi5715962 Base hole tapped for standardReady to install, Direct Bolt on cylinders require no re plateting and look virtually identical to the oem cylinder, cylinder kit includes matched vertex pistons to enure longevity, performance and reduced engine noise, nickel carbide Gaskets, Cylinder, Piston, Rings, Pin and Clips, Big Bore Cylinder's Do Not Require Machine Work, Made in the USA