Yokomo BD-S4 22.5mm Shock Cylinder BD7 BD5 Upgrade  [BD-S4]

Yokomo BD-S4 Shock Silinder (22.5mm) for BD7/BD5
Price:
£7.54
Brand:
Yokomo
Model:
BD-S4
GTIN:
3888
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Or you may find similar product under the
Spares / Hop-ups - Yokomo - BD7 category
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Optimise BD7 and BD5 Dampers with the Yokomo BD-S4

The Yokomo BD-S4 offers increased internal capacity compared to earlier cylinders to aid consistent damper behaviour on BD7 and BD5 platforms. Its fluorine coating minimises friction at the piston, delivering smoother suspension action and steadier handling at speed.

Key Features of the BD-S4 Unit

  • Enhanced Control: Larger capacity supports consistent damping when driving aggressively.
  • Fluorine Coating: Reduces internal drag for improved piston movement and repeatable feel.
  • Made for BD7 and BD5: Dimensioned to suit BD7 and BD5 shock assemblies for straightforward replacement.
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.

Will this improve lap times on asphalt circuits?

By reducing piston friction and stabilising damping, the BD-S4 can make handling more predictable which helps driver confidence and consistency on flat surfaces.

Can the coating wear off with use?

The fluorine layer is designed for long service, but like any component it will benefit from regular cleaning and correct oiling to prolong its effective life.

Are there any setup changes needed after fitting these cylinders?

Basic shock setup checks such as oil level and piston clearance are recommended after fitting to ensure the reduced friction delivers the intended handling improvements.

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