Yokomo YOKBDS103 - 3 Hole Piston (1mm) Damper Piston for R/C Shocks  [YOKBDS103]

Yokomo BD-S103 - 3 Hole Piston (1mm)
Price:
USD$5.70
Brand:
Yokomo
Model:
YOKBDS103
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3-Hole 1mm Damper Piston

This Yokomo YOKBDS103 3 hole piston is an RC-scale damper part intended for use inside shock bodies to alter oil flow and damping behaviour. The 1mm three-hole pattern offers a specific bleed characteristic useful when refining mid-to-high speed damper response during setup.

Install it as you would any internal piston: ensure the piston slides freely on the shock shaft, orient the holes consistently between front and rear shocks, and use compatible shock oil and seals. This component is a simple, low-cost option to change the damper's hydraulic characteristics without replacing the entire shock assembly.

Tuning notes: three holes provide a different flow profile compared with single- or two-hole pistons, which affects rebound and compression balance. Try incremental changes in oil viscosity and piston selection when chasing consistent handling across a run.
Remark :
Due to limited stock availability, please notice that some Yokomo items may have to order from the factory and the ready time is around 4-6 weeks. Customer purchases the item is assumed to accept the waiting time which allows us to order directly from the manufacturer if the item is out of our warehouse.

What is the purpose of a 3 hole piston in a shock?

A 3 hole piston changes oil flow through the piston, altering damping feel and response, useful for tuning rebound and compression characteristics.

Any installation tips for this piston?

Ensure the piston is clean, align holes consistently, use appropriate shock oil, and test incremental changes rather than large jumps.

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