Kyosho W5303-13 Big Bore 1.7mm 2-Hole Shock Pistons  [KY-W5303-13]

Kyosho W5303-13 - Shock Piston(2-Hole/1.7/2pcs/Big Bore Shock)
Price:
AUD$7.65
Brand:
Kyosho
Model:
KY-W5303-13
Condition:
Brand New
Quantity Discount
Unit Price You Save
2 $7.06 each $1.17 or 8%
3+ $6.71 each $2.79 or 12%
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Precision Damping Upgrade for Ultima RB7 with Kyosho W5303-13

Racers wanting a cleaner shock response can fit the Kyosho W5303-13 pistons to their big bore units. The 1.7mm, two-hole layout improves oil metering so the suspension behaves more consistently under load.

Balanced Flow for Better Cornering

The Kyosho W5303-13 design reduces abrupt damping transitions, allowing drivers to carry speed through corners with greater confidence. The controlled flow helps maintain chassis balance during quick direction changes.

Compatibility and Setup Advice

These pistons are intended for the Ultima RB7 shock assemblies and install without modification. Pair them with appropriate spring rates and test oil grades to hit the desired ride height and roll characteristics.

Care, Bleeding and Service

To get the best from Kyosho W5303-13 pistons, bleed trapped air from shocks after assembly and replace oil regularly. Check piston ports and seals at service intervals to prevent performance drift.
Remark :
Due to limited stock availability, please notice that some Kyosho 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 these pistons affect ride height?

Pistons themselves do not change ride height, but the resulting damping behaviour may allow you to run different springs or oil to achieve a preferred ride stance.

Do I need special tools to install them?

Standard shock maintenance tools and a steady hand are sufficient; ensure seals and shafts are clean and use the correct oil to avoid trapping air.

Can I combine these with aftermarket shock bodies?

They can work in compatible aftermarket bodies, but verify bore size and piston mounting to ensure the Kyosho W5303-13 fits and operates as intended.

How often should I refresh the shock oil?

For regular club use check and replace oil every few sessions or sooner if you notice inconsistent damping or leaks; heavy use on dusty tracks may require more frequent changes.

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