✕

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.

If an ECU tune was purchased, please send your unmodified and undamaged OEM ECU to TST Industries, located at 623 Pleasant St, Lake Helen, FL 32744.

* All fields are required Close Aknowledgement
x

FREE SHIPPING OPTION FOR DOMESTIC ORDERS:

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.

NO RESTOCKING FEES:

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.

MOST QUESTIONS ABOUT THIS PRODUCT CAN BE ANSWERED ON THIS PAGE.

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.
NO ADDITIONAL COST: You pay at the time of checkout and never have to worry again.
COVERAGE: Our Limited Extended Warranty starts on the date of purchase. It covers all manufacturer defects for our TST Exclusive products. (Products manufactured by us with the exception of our WORX products)
EXPERT HELP: As always our team is here to help. If you’re unsure about this warranty or if your product is eligible, feel free to reach out to us and we can help answer any questions you may have!
PRODUCT ELIGIBILITY: TST will offer our Limited Extended Warranty on all products manufactured by TST Industries.
EASY CLAIMS PROCESS: Simply click the “Contact Us” page and fill out the “Returns Form” to begin the warranty process. Once our team receives your email and initiates the RMA, you can send your product back to us and we will repair/replace the product at no cost as long as a manufacturer defect is found. What qualifies as a manufacturer defect? Check out our Terms and Conditions for some examples!

TST WORX 520 Lightweight Aluminum Rear Sprocket for Kawasaki Ninja 650 / Z650

  • TST WORX 520 Lightweight Aluminum Rear Sprocket for Kawasaki Ninja 650 / Z650
  • Lightweight aluminum construction decreases parasitic loss due to excess component weight.
  • proprietary tooth profile features an ultra-smooth transition design.
  • Upgrade your Kawasaki Ninja 650 or Z650 with a lightweight rear sprocket from TST WORX.
  • Each TST Rear Sprocket has a Type III black anodized hard-coat for extreme durability.
  • Upgrade your rear Kawasaki's drivetrain with a TST WORX lightweight aluminum rear sprocket.
  • TST WORX Rear Sprockets feature high quality construction and styling.
  • hard anodized finish provides long lasting rear sprocket durability without compromising the lightweight attributes.

TST WORX 520 Lightweight Aluminum Rear Sprocket for Kawasaki Ninja 650 / Z650

TST WORX 520 Lightweight Aluminum Rear Sprocket for Kawasaki Ninja 650 / Z650

Our TST WORX 520 Lightweight Aluminum Rear Sprocket was developed to provide dramatic component weight loss and exceptional durability by combining high-quality 7075-T6 aluminum alloy with advanced manufacturing and hardening anodized finishing techniques. So whether you're riding the street or dragging elbow at the track, our TST WORX Rear Sprocket was designed to provide increased and long-lasting performance on your Kawasaki Ninja 650 / Z650.

Available in 45-51 tooth counts.

Applications:
Kawasaki Ninja 650 | 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
Kawasaki Z650 | 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025

This product is part of our Worx Program!

Learn More!
Have a Question About This Product?
SKU
2017 - 2019/Z650/Kawasaki
TST WORX 520 Lightweight Aluminum Rear Sprocket for Kawasaki Ninja 650 / Z650
 
Price: $69.99
Select Tooth Count
Quantity

ATTENTION:

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

▾
  • Product Details
  • Specs
  • In the Box
  • Recommended Accessories

Features

  • CNC machined from lightweight 7075-T6 aluminum alloy using advanced techniques
  • Full sprocket treatment with Type III black anodized hard-coat for long-lasting durability
  • Proprietary matte black anodized finish
  • Proprietary tooth profile
  • Ultra-smooth tooth transition geometry
  • Lighter than the stock Kawasaki rear sprocket
  • Available in 45-51 tooth profiles

Description

Designed and built by race engineers in the TST WORX race program, our Lightweight Aluminum Rear Sprocket was developed with the harshest riding conditions in mind. Our use of the best materials and manufacturing procedures ensure practical longevity while maximizing weight loss for increased performance and power delivery. The blend of high-quality material, advanced hardening procedures, lightweight design, proprietary tooth profile, and ultra-smooth tooth transitions ensure exceptional performance even during the most demanding riding situations.

We produce every TST WORX Rear Sprocket from 7075-T6 aluminum alloy. This high-quality material is CNC machined using a propriety holding plate process developed to eliminate vibration during the machining process and ensuring extreme precision and material integrity. We then treat the entire rear sprocket with a matte black Type III hard coat anodizing process that penetrates the aluminum and builds an ultra-hard surface layer, resulting in a light weight sprocket with exceptional durability characteristics capable of taking on the rigorous demands of the street and track. It's time to give your Kawasaki Ninja 650 or Z650 the sprocket and performance it deserves.

Be sure to check the "Specs" tab for even more info on tooth count, sprocket weight, and fitment.

Application Spec Sheet

Model Years OEM Pitch OEM Front Sprocket OEM Rear Sprocket Chain Length
KAWASAKI NINJA 650 2006 - Current 520 15 46 114
KAWASAKI Z650 2017 - Current 520 15 46 114

WORX Rear Sprocket Weight Guide

Sprocket Tooth Count Weight (ounces)
45 Teeth 12.3 ounces
46 Teeth 12.6 ounces
47 Teeth 13.1 ounces
48 Teeth 13.6 ounces
49 Teeth 14.2 ounces
50 Teeth 14.6 ounces
51 Teeth 15.1 ounces
  • (1) TST WORX 520 Lightweight Aluminum Rear Sprocket (your choice of tooth count)
  • 1 Year Warranty (See our warranty policy here)
warning

WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov

Ask a question about this product

Reviews

There have been no reviews

Add your own review

 
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.