RC Damper Silicone Oil 850wt - Yokomo YS-850  [YOKYS850]

Yokomo YS-850 - Super Blend Shock Oil #850
Price:
£4.62
Brand:
Yokomo
Model:
YOKYS850
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Why Choose This Shock Oil?

The Yokomo YS-850 Super Blend Shock Oil #850 is a silicone-based fluid made for RC shock absorbers, providing a stable 850wt viscosity to aid consistent damping. It is suitable for a range of electric and nitro applications where repeatable response is important.

Changing the oil weight affects compression and rebound timings, so using YS-850 influences body roll, traction behaviour, and overall chassis balance. Use it as part of systematic setup changes to refine handling characteristics.

When you service shocks, clean the damper chamber and remove any trapped air before final assembly to preserve damping consistency. Check the condition of seals and pistons for silicone compatibility and perform short test runs after any oil change to confirm the result.
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 there seal materials that do not suit silicone oil?

Some very old or degraded seals can swell or leak with silicone oils; inspect and replace suspect seals before using YS-850 to avoid leaks.

How often should I change shock oil during regular use?

Replace oil whenever contamination is found or after heavy running; for hobby use, periodic checks and changes every few outings keep damping consistent.

Will the YS-850 affect piston choice?

Heavier oil can change flow characteristics through the piston holes; match piston bleed size and valve rates with 850wt to achieve intended damping.

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