Attention: You are purchasing closed course competition Product(s)

I acknowledge that the product(s) being purchased () was/were designed and intended for closed course competition use only. The product(s) is/are neither designed nor intended for use on public roads or land and is against Federal and State regulations to do so. By proceeding with this purchase, I , agree to only use the product(s) for closed course competition.

* All fields are required Close Aknowledgement


U.S. customers are offered a free shipping option for orders with a discounted subtotal greater than $150.00 (before taxes applied). The order's shipment destination must reside within the United States of America. The free shipping options still utilize our standard postage providers and 3rd party shipping companies. Does not apply to large items such as exhausts, stands, and bodywork shipping. All terms and conditions that apply to normal orders will continue to apply to orders with a free shipping option.


An item returned within 30 days of purchase, that includes an accurate RMA#, in a perfectly new, unopened condition, and that complies with our other return policies, will not be charged a restocking fee.


The most common product related questions are answered in the tabs section on this page. Be sure to carefully read through the "Product Details", "In the Box", and "FAQs" tabs. In addition, a lot of our products have comprehensive videos demonstrating installations and product features. You can find those videos in the "Videos" tab.

Note: Some product pages may not have all the tabs mentioned above. Please read through all the available tabs to find the answers to your questions. If you still need assistance, please use the "ASK A QUESTION ABOUT THIS PRODUCT" button below the tabs section.

TST Clutch Return Spring for Kawasaki Ninja 400 2018+

TST Clutch Return Spring for Kawasaki Ninja 400 2018+ What's included. Simple and easy installation. Gain faster shifts and more confidence knowing your clutch lever is fully disengaging. TST Image Carousel Close

TST Clutch Return Spring for Kawasaki Ninja 400 2018+

Ensure that your Kawasaki Ninja 400 clutch fully disengages and the lever returns back to the standard resting position with this easy to install TST Clutch Return Spring kit.

What's included:

  • (1) Spring
  • (1) Bolt
  • (1) Nut

Installation Note: The plastic frame cover will need to be removed and a small hole will need to be drilled into the clutch actuator arm for proper installation and operation.


Kawasaki Ninja 400 | 2018, 2019, 2020

This product is part of our Worx Program!

Learn More!
SKU 10471
Weight 0.15 LBS
Price: $5.99
tst email icon
Get a notification when this item is back in stock.


If buying this product as part of the Buy Together bundle below, define these options there.


  • Ensures that the clutch is fully disengaged after actuation
  • Aids in returning the clutch lever back to its' standard resting postion
  • Easy installation with minor modification required
  • Improves performance and rider confidence


Completely eliminate the occurrence of your Kawasaki Ninja 400 clutch lever failing to return to its standard position after actuation with one simple installation. By installing our TST Clutch Return Spring, the additional tension on the clutch actuator arm aids in preventing post-actuation free-play in the lever and ensures your clutch is fully disengaged. We use this kit on our in-house TST Ninja 400 supersport race bike and have fine-tuned the spring length for optimal performance.

Please note this item is not DOT approved and may not comply with the laws and regulations in your area. See our Terms & Conditions for more information.

  • (1) Spring
  • (1) Bolt
  • (1) Nut
  • 1 Year Warranty (See our warranty policy here)

Coming Soon

Q: Do I have to do any drilling?
A: Yes - a small hole will need to be drilled into the clutch actuator arm. This enables the return spring to securely attach to the clutch.

Q: Will my plastic frame cover be able to be reinstalled after I install the TST Clutch Return Spring kit?
A: No - in order for the return spring to operate correctly, the frame cover is not able to used without modification.

Q: Is this meant for the street or the track?
A: Both - we specifically created this for our Ninja 400 track bike, but that doesn't mean a street rider won't see improvements with this installed on their bike.

Q: How long will it take for me to receive this once I order it?
A: Please see the articles in our support center regarding domestic and international shipping.

Q: I'm located outside of the United States. Will I have to pay duties on this item?
A: Some countries charge additional fees when a package is imported and delivered to the recipient. We have no way of knowing or estimating what these fees will be. It is the buyer's responsibility to cover these additional costs.

Q: What is your return and warranty policy?
A: Please read over our policies thoroughly on our terms and conditions page BEFORE making your purchase.
TST Industries Terms and Conditions

WARNING: Cancer and Reproductive Harm -


There have been no reviews

Dear Customer, TST Industries' website uses cookies to allow us to better understand how the site is being used and to enhance your shopping experience. By continuing to use this site, you consent to this policy. Click to learn more.