What does changing the primary clutch spring do?

Changing the primary clutch spring allows you to adjust when your clutch engages and at what RPM it reaches its maximum engagement. This can improve your vehicle's acceleration and how it handles different terrains or riding styles.

Why is the 5% tolerance important for this spring?

A strict 5% tolerance means the spring's performance is very consistent and predictable. This helps ensure reliable clutch operation and allows for more precise tuning of your CVT system.

Does this spring come with any other clutch components?

This product is for the primary drive clutch spring only. Other clutch components, such as weights or secondary springs, are sold separately.

EPI Primary Drive Clutch Spring CVT5

Name: EPI 15-22 CFMOTO 400-1000 CForce/UForce/ZForce Primary Spring Gray
Brand: EPI
SKU: epi-epi-15-22-cfmoto-400-1000-cforce-uforce-zforce-primary-spring-gray-t14-838792
Price: 35.89 USD
Availability: BackOrder

EPI 15-22 CFMOTO 400-1000 CForce/UForce/ZForce Primary Spring Gray

$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 Primary Drive Clutch Spring for CFMOTO 400-1000 ATVs and UTVs. Fine-tune clutch engagement and top RPM for your riding style.

Key Features

Fits 2015-2022 CFMOTO 400cc-1000cc CForce, UForce, and ZForce models.
Primary drive clutch spring for CVT systems.
Allows fine-tuning of clutch engagement and top RPM.
Manufactured with a strict 5% tolerance for consistent performance.
Spring load: 200 Newtons at 60mm (45 Lbs) and 600 Newtons at 32mm (135 Lbs).

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Product Details

This is an EPI Primary Drive Clutch Spring, part number CVT5, designed for CFMOTO 400cc to 1000cc CForce, UForce, and ZForce models from 2015-2022. This spring is a key component in your ATV or UTV's Continuously Variable Transmission (CVT) system, directly influencing how your clutch engages and disengages power. By changing this spring, you can adjust your clutch's engagement point and its ability to reach higher RPMs, allowing you to better match your vehicle's performance to specific riding conditions or your personal riding style.

EPI manufactures these springs with a focus on consistency and reliability. They adhere to a very strict 5% tolerance, which is notably the lowest in the industry. This tight tolerance means you can expect predictable and repeatable clutch performance every time. The spring has a load rating of 200 Newtons at 60mm and 600 Newtons at 32mm, which translates to 45 Lbs at 60mm and 135 Lbs at 32mm. This precise spring rate helps fine-tune your clutch's operation for improved responsiveness and power delivery.