The Kyosho VSW030-01 soft clutch spring is made to sharpen low-end throttle control on GS15R-powered RC cars. It reduces abrupt engagement for smoother power delivery, helping drivers get cleaner starts.
Specifically matched to GS15R engines, this soft spring adjusts the clutch engagement window so gear changes feel more gradual and predictable during launches and short bursts of acceleration.
Fitting the VSW030-01 is a quick upgrade for those familiar with clutch servicing. The softer tension means the clutch grabs earlier, which can be especially useful when trying to improve initial acceleration without aggressive throttle input.
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