Kyosho W5303-13 1.7mm 2-Hole Pistons for Racing Ultima RB7  [KY-W5303-13]

Kyosho W5303-13 - Shock Piston(2-Hole/1.7/2pcs/Big Bore Shock)
Price:
£3.81
Brand:
Kyosho
Model:
KY-W5303-13
Condition:
Brand New
Quantity Discount
Unit Price You Save
2 £3.51 each £0.58 or 8%
3+ £3.34 each £1.39 or 12%
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Refine Your Ultima RB7 Suspension with Kyosho W5303-13

Competitive drivers seeking steadier shock action can fit Kyosho W5303-13 pistons to their big bore units. The 1.7mm two-port configuration tames erratic flow and gives a more consistent damping profile around the circuit.

Improved Damping Consistency

Kyosho W5303-13 pistons are made to smooth the passage of shock oil so the car reacts predictably during repeated compressions. That steadiness helps when tuning for precise turn-in and exit behaviour.

Straightforward Fitment to Ultima RB7

These pistons match Ultima RB7 shock internals for a direct swap without fabrication. Using them lets you fine-tune handling by pairing different oil grades and spring combinations to suit the track.

Service Tips for Reliable Performance

After installing Kyosho W5303-13 pistons, make sure shocks are bled properly and seals sit flush. Keep a maintenance schedule for oil changes and piston inspection to maintain consistent lap times.
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.

How do these pistons affect corner entry?

They help control initial compression so turn-in is less likely to be upset by sudden weight transfer, allowing smoother entry and better line holding.

Are there benefits for both front and rear shocks?

Yes, fitting the same pistons front and rear gives more uniform damping characteristics, but you can tune front and rear oil weights to balance understeer or oversteer.

What should I look for when selecting shock oil?

Choose a silicone shock oil that complements the 1.7mm two-hole flow profile and adjust viscosity to control rebound and compression speed for the driving conditions.

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