TST WORX 520 Lightweight Aluminum Rear Sprocket for Yamaha YZF-R3 (2015+) / MT-03 (2020+)
zoom_out_map
chevron_left chevron_right
-20%

TST WORX 520 Lightweight Aluminum Rear Sprocket for Yamaha YZF-R3 (2015+) / MT-03 (2020+)

Dispatch in 2-4 weeks
€79.02 €99.19 -20.33%
warning Last items in stock
  Fast delivery

Fast and reliable shipping across the World

  14 day return policy

Changed your mind? You can return your order within 14 days (EU/EEA customers).

  Secure Payment

All payments are encrypted and processed securely through a trusted provider.

  Responsive Customer Service

We always respond quickly – wherever you're contacting us from.

Make an Offer

Your Offer is sent.

Your Offer is accepted, please check your inbox.

  •     *Required Fields

Loading


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 Yamaha R3.

Available in 40-48 tooth counts.

Applications:

Yamaha YZF-R3 | 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024

Yamaha MT-03 | 2020, 2021, 2022, 2023, 2024

This product is part of our Worx Program!

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
  • Approximately 72% lighter than the stock Yamaha rear sprocket setup
  • Available in 40-48 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 Yamaha the sprocket and performance it deserves.

Application Spec Sheet

Model Years OEM Pitch OEM Front Sprocket OEM Rear Sprocket Chain Length
Yamaha YZF-R3 2015 - Current 520 14 43 112
Yamaha MT-03 2020 - Current 520 14 43 112

WORX Rear Sprocket Weight Guide

Sprocket Tooth Count Weight (ounces)
40 Teeth 7.97 ounces
41 Teeth 8.47 ounces
42 Teeth 8.82 ounces
43 Teeth 9.17 ounces
44 Teeth 9.59 ounces
45 Teeth 10.09 ounces
46 Teeth 10.45 ounces
47 Teeth 10.87 ounces
48 Teeth 11.31 ounces
SPKT29-520XX_SPKT29-52041
Data sheet
Delivery
Dispatch in 2-4 weeks
Yamaha
  • MT-03 - 2020 - 2024
  • YZF-R3 - 2015 - 2018
  • YZF-R3 - 2019 - 2024
  • YZF-R3 WORX - 2015 - 2018 Superbike
  • YZF-R3 WORX - 2015 - 2018 Supersport
Returns Policy

EU/EEA customers have a 14-day right of return from the day the goods are received. The goods must be unused, with tags attached and in the original packaging.

All returns must be pre-approved: e-mail info@mrttech.ee within 14 days of receiving the goods, stating the order number, and wait for our written confirmation before sending anything back. Return shipping is arranged and paid for by the customer.

Once we have received and inspected the returned goods, we issue the refund within 14 days. Where possible we refund using the original payment method (for example PayPal or Stripe), otherwise by bank transfer.

Shipping

Parcel machine (Estonia, Latvia, Lithuania, Finland) – €9.90. Courier (non-express) – from €19.00, within the EU and internationally, with the exact cost calculated at checkout. Collection in store at Taevakivi 1, Tallinn – free. Free delivery on orders of €500 or more. Prices include VAT where applicable.

In-stock items are normally dispatched within 1–3 working days from release from our warehouse. Delivery times are estimates, not guarantees — some items may take longer, for example when ordered in specially or during stock or supplier delays. We are not liable for delays beyond our reasonable control, but we always make reasonable efforts to deliver at the earliest opportunity. This does not affect any statutory rights the customer may have as a consumer.

See our full delivery and return terms: shop.mrttech.ee/en/content/1-delivery

Do you have questions about this product: TST WORX 520 Lightweight Aluminum Rear Sprocket for Yamaha YZF-R3 (2015+) / MT-03 (2020+)?

If you encounter problems or need additional help, contact our customer support. We’ll be happy to assist you.

I accept privacy policy rules