Roc N Soc Replacement Seat Mounting Plate.
Fits many Roc N Soc seat tops, includes replacement (4) bolts and washers designed for use with Gibraltar, Roc n Soc and Custom percussion bases. Diagonally across mounting holes are drilled: Min 17.5 cm max 21 cm This hub could easily be drilled to match any mounting holes.
In some cases holes are needed to be drilled/made bigger as older Roc N Soc tops had wider spacing This is an official Roc N Soc part.

