Yokomo S4-S3OS Race Lightweight O-Ring Kit for Big Bore Shocks  [S4-S3OS]

Yokomo S4-S3OS O-Ring Set (2set) for SO/MO2.0 (Light Weight)
Price:
NZD$6.29
Brand:
Yokomo
Model:
S4-S3OS
GTIN:
639342222032
Condition:
Brand New
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Upgrade Shock Sealing for SO/MO2.0 with Yokomo S4-S3OS

The Yokomo S4-S3OS O-Ring Set ships with two bottles of precision O-rings intended for use with 13mm big bore shocks and the SO/MO2.0 chassis range. These rings tighten the seal and cut internal friction so shocks run smoother and keep performance consistent lap after lap.

Performance Highlights

  • Lightweight Design: Engineered to reduce rotating and unsprung weight for crisper response.
  • Enhanced Durability: High quality compound resists abrasion and lengthens service intervals.
  • Compatibility: Optimised dimensions for Yokomo SO/MO2.0 chassis for correct seating and leak prevention.
  • Performance Boost: Less internal drag lets you dial in suspension settings with greater precision.
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.

Are these O-rings supplied in bulk or organised per shock?

The set contains two bottles of O-rings so you can stock spares and manage replacements without stripping all shocks at once.

Can I use these O-rings with aftermarket shock pistons and spacers?

Yes, they are compatible with most 13mm big bore piston and spacer setups as long as the internal dimensions match the shock body. Always check clearances before final assembly.

Do these O-rings affect shock oil choice?

The O-rings themselves do not require a specific oil, but because they lower friction you may notice differences when changing oil weight; test different viscosities to achieve your desired damping.

Any tips for storing spare O-rings to prevent deformation?

Keep bottles in a cool, dry place away from direct sunlight and avoid compressing them inside tool boxes to preserve shape and elasticity.

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