What does a primary drive spring do for my ATV?

A primary drive spring works with your ATV's clutch system to control when the clutch engages and what your engine's maximum RPM will be. Changing springs allows you to customize how your machine accelerates and performs at higher speeds.

Why is the 5% tolerance important for this spring?

A tight tolerance, like the 5% EPI adheres to, ensures that the spring performs consistently and reliably. This means you get predictable clutch engagement and RPM characteristics every time, which is crucial for performance and control.

Does this spring come with any other clutch components?

This product is for the EPI Primary (Drive) Spring only. Other clutch components, such as weights or secondary springs, are sold separately and may be needed for a complete clutch tuning setup.

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EPI 04-06 Arctic Cat 650 V2 Primary Spring Gold

Specifications

Brand: EPI
Part #: DRS21

EPI 04-06 Arctic Cat 650 V2 Primary Spring Gold

Name: EPI 04-06 Arctic Cat 650 V2 Primary Spring Gold
Brand: EPI
SKU: epi-epi-04-06-arctic-cat-650-v2-primary-spring-gold-t14-838799
Price: 35.89 USD
Availability: BackOrder

$35.89

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

EPI 04-06 Arctic Cat 650 V2 Primary Spring Gold. Fine-tune clutch engagement and top RPM for your riding style.

Key Features

Fits 2004-2006 Arctic Cat 650 V2.
Primary drive spring allows fine-tuning of clutch engagement and top RPM.
Manufactured with well-built materials.
Maintains a strict 5% tolerance for consistent performance.
Load specifications: 21.3 kg at 2.25 in., 61.2 kg at 1.25 in., 11.3 kg at 2.5 in.

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Product Details

If you're looking to dial in the performance of your 2004-2006 Arctic Cat 650 V2's clutch system, this EPI Primary Drive Spring is a solid option. It's designed to help you fine-tune how your clutch engages and what your engine's top RPM will be, letting you match your machine to your specific riding style and the terrain you're tackling.

EPI makes these springs with well-built materials and holds them to a very tight tolerance, just 5% difference from spec, which is the lowest in the industry. This means you can count on consistent and reliable performance every time you hit the throttle. For example, this gold spring has a load of 21.3 kg at 2.25 inches, 61.2 kg at 1.25 inches, and 11.3 kg at 2.5 inches, giving you a specific feel for how it will affect your clutch's operation.