Yokomo S4-SB1320 13mm Blank Shock Piston - Tunable Upgrade  [S4-SB1320]

Fine Shock Tuning with Yokomo S4-SB1320

Made for hands-on RC tuners, the Yokomo S4-SB1320 blank piston fits 13mm shock bodies and provides a blank canvas for custom hole patterns. Guide marks on the piston let you drill between 2 and 6 holes with accurate alignment so you can dial in the damping you need.

Choose Hole Count and Feel

The blank piston supports three thickness options: 1.5mm, 2.0mm, and 2.5mm. Use thinner pistons for a softer, more responsive action and thicker pistons when you want a firmer suspension response for rougher tracks.

Fitment Notes and Setup

This piston is compatible with a range of Yokomo off-road chassis including the SOR-020, MOR-020, and SOR-020D. Its simple design makes it straightforward to install as part of a wider shock setup or upgrade project.