Yokomo S4-SB1315 13mm Blank Piston for SO/MO Shocks  [S4-SB1315]

Yokomo S4-SB1315 Blank piston for SO/MO 13mm Shock 1.5mm thickness
Price:
£5.97
Brand:
Yokomo
Model:
S4-SB1315
GTIN:
639342225262
Condition:
Brand New
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Fine Control Shock Piston by Yokomo

The Yokomo S4-SB1315 blank piston is aimed at enthusiasts who prefer to tune shocks manually. It has a 13mm diameter and a 1.5mm thickness, providing a consistent platform for modifying damping characteristics. By creating your own hole pattern you can adapt shock response for different driving surfaces and styles.

Choosing Hole Numbers for Desired Response

The piston includes alignment marks and supports drilling from 2 up to 6 holes so you can experiment with oil flow and damping. Altering the hole pattern is a straightforward way to move between softer and firmer setups without swapping pistons. It is compatible with Yokomo SOR-020, MOR-020 and SOR-020D shock configurations to help improve handling and balance.
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.

How do I pick the right hole pattern?

Start with a mid-range hole count and adjust based on testing; fewer holes suit tighter tracks and firmer settings, more holes suit rougher surfaces for a softer feel.

What is the safest drilling technique?

Use a pin vise and small pilot bits, secure the piston in a soft jaw or fixture, and remove material gradually to avoid cracking or uneven holes.

Will this work with my existing Yokomo shocks?

This blank piston is made for 13mm SO/MO shock types and suits Yokomo SOR-020, MOR-020 and SOR-020D assemblies, but always confirm internal dimensions before installation.

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