Kyosho VZ438 1.7mm Race-Spec Clutch Spring for V ONE R4  [KY-VZ438]

Kyosho VZ438 - Clutch Spring (1.7)
Price:
NZD$9.70
Brand:
Kyosho
Model:
KY-VZ438
Condition:
Brand New
Quantity Discount
Unit Price You Save
2 $8.69 each $2.01 or 10%
3+ $8.27 each $4.29 or 15%
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Dial In Clutch Feel with Kyosho VZ438

The Kyosho VZ438 is a 1.7mm clutch spring built for the V ONE R4 series. It improves the clutch engagement profile so drivers get a more repeatable bite and predictable throttle control. Its construction aims to balance performance and durability for frequent track use.

Why This Spring Works

With uniform tension and a reliable return, this spring reduces unwanted slippage and helps keep power transfer consistent. It is suitable for tuners adjusting engagement points or replacing worn components.

Installation Tips

Before fitting the Kyosho VZ438, clean the clutch area and remove any contaminants. Fit the spring carefully and check alignment under low speed to confirm correct seating. Regular checks will extend clutch component life.
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.

Can I pair this spring with stiffer clutch shoes?

Yes, you can combine the VZ438 with different shoes to tune engagement. Match the spring rate to the shoe hardness to avoid premature wear or slipping.

Does spring thickness affect gearing choices?

Spring thickness alters engagement force but does not change gear ratios. Use it to fine-tune how power is delivered through the drivetrain alongside your gearing decisions.

How often should I inspect the spring during race weekends?

Check the spring each day of competition and after heavy runs. If you notice performance shifts, swap it out between sessions to keep consistent lap times.

Is special grease required when installing this spring?

Avoid heavy greases on the spring itself; keep the clutch surfaces clean or use a light lubricant sparingly on pivot points only. Excess grease can alter engagement.

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